Archery Draw Length Calculator: USA Archery Wingspan, Height and Shooting Position Methods for Recurve and Compound Bows
The only free US archery calculator that runs all three USA Archery draw length methods simultaneously: the primary wingspan formula (wingspan divided by 2.5), the height estimate, and the shooting position direct measurement. Outputs draw length, recommended arrow length, recurve bow AMO size, and draw weight guidance by experience level.
Experience level affects draw weight recommendations only, not draw length. Draw length is determined solely by body measurements.
Method 1: Wingspan (Primary USA Archery Method)
inches
Stand with both arms outstretched horizontally. Ask someone to measure from the tip of your middle finger on your left hand to the tip of your middle finger on your right hand. This is the USA Archery standard measurement. Formula: Wingspan divided by 2.5.
Method 2: Height Estimate (Approximation)
ft
in
Height and wingspan are approximately equal for most people, making this a quick estimate when wingspan measurement is not convenient. Formula: Height in inches divided by 2.5.
Method 3: Shooting Position (Most Accurate for Established Form)
inches
For experienced archers with set form: make a fist with your bow hand, extend your arm and touch the wall. Draw back to your anchor point with your fingers, keeping your fist on the wall. Measure from the wall to the corner of your mouth or your established anchor point. This is the ATA/AMO method.
🏹 Draw Length Results
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Enter at least one measurement (wingspan is the primary USA Archery method) and click Calculate Draw Length. You get all three method results simultaneously, the recommended draw length rounded to the nearest half inch for bow fitting, correct arrow length with safety overhang, recurve bow AMO size, and draw weight guidance for your experience level.
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RECOMMENDED DRAW LENGTH
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Wingspan Method
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Height Method
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Shoot Position
Arrow Length
Recurve Bow Size
Draw Length Comparison Across Methods
Archery Draw Length: The USA Archery Formula Every Beginner and Club Archer in the US Needs to Know
Draw length is the single most important measurement in archery equipment fitting, and getting it wrong is the primary reason beginner archers in the United States develop poor form, shoot inaccurately, and sometimes injure themselves in the shoulder, elbow, or wrist. Draw length determines the distance you pull the bowstring back from its resting position to your anchor point (the consistent position where your drawing hand makes contact with your face), and every specification of the bow and arrow system depends on it. A draw length that is too long encourages over-reaching and collapsing at full draw, which produces inconsistent arrow release and erratic groupings at any target distance. A draw length that is too short produces a cramped, hunched draw that limits power transfer and is uncomfortable to shoot over extended practice sessions. USA Archery, the national governing body for the sport in the United States and the organization responsible for developing US Olympic archery teams, uses the wingspan divided by 2.5 formula as its primary sizing method for all beginning and intermediate archers in its nationwide club and Learn to Shoot programs.
USA Archery’s formula is rooted in human proportion: for most people, arm span (measured fingertip to fingertip with arms outstretched) is approximately equal to standing height, and both measurements in inches divided by 2.5 produce the correct draw length for that person’s frame. The formula produces a number in inches that represents the distance from the deepest point of the bow grip to the nocking point on the string at full draw in a relaxed, natural shooting stance. This is also called the AMO (Archery Manufacturers and Merchants Organization) draw length, which became the ATA (Archery Trade Association) standard. The ATA, now headquartered in Harrisburg, South Dakota, is the US trade association for the archery and bowhunting industry, and its draw length standard is used by all major US bow manufacturers including Mathews, Hoyt, Bear Archery, PSE, and Prime when specifying bow specifications and setting draw length modules on compound bows.
The Three USA Archery Draw Length Methods Explained
The wingspan method (wingspan in inches divided by 2.5) is the primary method recommended for beginning archers because it can be measured before the archer has developed a consistent shooting form, does not require a bow on hand, and produces results within half an inch of the shooting position method for most people with typical arm proportions. The height method uses total standing height in inches divided by 2.5 as a quick approximation, which works because most people have a wingspan very close to their height, though athletes with exceptionally long or short arms relative to their height will see a meaningful difference between the two results. The shooting position method requires the archer to actually draw a bow (or simulate the draw against a wall) and measure the distance from the bow grip contact point to the anchor point during the draw. This method is the most accurate for experienced archers who have established consistent form, because it accounts for individual variations in anchor point location, grip style, and drawing mechanics that the body measurement methods cannot capture. This calculator displays results from all three methods simultaneously so you can compare them and understand how closely your body measurements and actual shooting mechanics align.
How This Archery Draw Length Calculator Uses Three USA Archery Methods Simultaneously
Enter any or all three measurements and the calculator displays the result for each available method side by side, with the recommended draw length shown as the wingspan result (or the average of available methods when wingspan is not entered) rounded to the nearest half inch. Rounding to the nearest half inch matters because bow manufacturers size adjustable compound bow draw lengths in half-inch increments (the modules that change draw length on most compound cams are available in half-inch steps), and traditional recurve and longbow archers shoot with arrows cut to the nearest standard length, which are also sold in half-inch increments. The arrow length output adds the minimum safety overhang of 1 to 1.5 inches to the draw length and identifies the nearest standard cut-to-length arrow. The recurve bow size chart then cross-references the recommended draw length against the AMO bow length table used by US archery retailers and clubs. The draw weight guidance uses your selected experience level to recommend appropriate starting weights for both recurve and compound bows at your draw length.
Recurve Bow Size Guide for US Archers: Matching Draw Length to AMO Bow Length
Draw Length
Recurve AMO Length
Common US Use
Example Bows
Under 23″
48″ (Youth)
Youth, very short draw
Samick Sage Youth, Bear Apprentice
23″ to 25″
54″ to 58″
Junior or small adult
Samick Sage 54″, Win and Win Winstar Jr
25″ to 27″
58″ to 62″
Short draw adult recurve
Hoyt Virgo, SF Axiom 60″
27″ to 29″
62″ to 66″
Most US club archers, Olympic range
Hoyt Xceed, Win and Win Inno Carbon, SF Forged+
29″ to 31″
66″ to 68″
Taller adults, longer draw
Hoyt Xceed 68″, Samick Polaris 68″
31″ and above
68″ to 72″
Very tall archers
Custom or specialty long-limb setups
Three US Archers Calculating Draw Length Across Age Groups and Body Types
Austin, TX: Youth Club Archer, Age 12
Wingspan 55″, Height 4’10” (58 in)
Wingspan method55 / 2.5 = 22″
Height method58 / 2.5 = 23.2″
Recommended DL22″ (wingspan primary)
Recurve bow size54″ to 58″
Arrow length23″ standard
Draw weight15-20 lb recurve
Denver, CO: Adult Beginner, 5’8″ Male
Wingspan 68″, Height 5’8″ (68 in)
Wingspan method68 / 2.5 = 27.2″
Height method68 / 2.5 = 27.2″
Methods agreePerfect proportion
Recommended DL27″ (nearest 0.5″)
Recurve bow size62″ to 66″
Draw weight20-30 lb recurve
Orlando, FL: Experienced Recurve, 5’10” Female
Wingspan 70″, Shooting Position 27.5″
Wingspan method70 / 2.5 = 28″
Height method70 / 2.5 = 28″
Shooting position27.5″ (measured)
Recommended DL28″ (wingspan primary)
Recurve bow size64″ to 66″
Draw weight36-40 lb (advanced)
Expert Tips: Draw Weight, Arrow Length, and Form Adjustments for US Club and Competitive Archers
01
Start With Lower Draw Weight Than You Think You Need
The most consistent mistake among new US archers is starting with too heavy a draw weight. Many adult men walk into a US archery club or sporting goods store and instinctively reach for a 40 to 50-pound recurve because it feels appropriately challenging when they first pull the string. But shooting 100 to 200 arrows per session in a club environment with 40 pounds of draw weight when your drawing muscles have no archery conditioning produces fatigue-induced form breakdown within the first 30 arrows, reinforcing bad habits that take months to unlearn. USA Archery certified instructors across the US universally recommend that adult beginners start at 20 to 30 pounds for recurve and 25 to 35 pounds for compound. Archery-specific muscles in the shoulder blade (particularly the rhomboids and lower trapezius) typically take 3 to 6 months of regular practice to develop sufficiently for comfortable sustained shooting at 35 to 40 pounds. Most US recurve bow setups allow limb upgrades as you get stronger, making a lower-weight starting setup a smart investment rather than a limitation.
02
Always Cut Arrows Longer Than Your Draw Length
Arrow length must always exceed your draw length by at least one inch, and most US archery instructors and pro shop staff recommend a minimum of 1 to 1.5 inches of arrow extending beyond the back of the bow at full draw. This safety margin prevents the arrow from falling off the rest at full draw, which causes the hand to contact the broadhead or field point directly and can produce a severe cut. For beginner archers who are still discovering their draw length through practice, many US archery pro shops recommend cutting arrows to draw length plus 2 inches for the first season to accommodate the minor draw length variability that occurs as form develops and stabilizes. Once an archer has shot consistently at the same club-verified draw length for a full season, arrows can be cut to the tighter 1 to 1.5-inch overhang for optimal spine performance. Never shoot arrows that are shorter than your draw length: this is one of the most dangerous mistakes in archery and can result in penetrating injuries to the draw hand, wrist, or forearm.
03
Get Fitted at a USA Archery Certified Range or Pro Shop
While this calculator provides the USA Archery standard draw length formulas, the best result for any new archer is a fitting session at a USA Archery certified club or a dedicated archery pro shop where a certified instructor can observe your draw and anchor in person. USA Archery (usarchery.org) maintains a searchable directory of affiliated clubs and ranges across the United States, and most clubs offer beginner fitting sessions as part of their introductory Learn to Shoot programs. At a fitting session, an instructor can assess not just your wingspan measurement but also your drawing style, anchor point position, release preference (fingers or release aid), and dominant eye, all of which affect the practical draw length determination. Many US compound bow dealers also offer free fitting on new bow purchases: the buyer’s draw length and weight are verified during setup, and the bow’s modules are adjusted to the correct setting before the first shot. This is a service not available online, and for compound bow buyers in particular, having a certified dealer set the draw length to the correct module position is worth the visit to a physical shop.
Compound Bow Draw Length: Modules, Cams and the AMO Standard
Compound bows set draw length through a combination of the cam geometry and interchangeable plastic or metal modules. Most modern US compound bows from brands like Mathews, Hoyt, Bear, PSE, and Prime offer draw length adjustments in half-inch increments within a range (typically 24 to 30 inches for adult models), with some bows offering broader ranges of 19 to 31 inches using multiple module positions. Unlike recurve bows where the archer can shoot at different draw lengths by adjusting their form, compound bows have a hard stop at the set draw length: the cams stop rotating and the back wall is reached at exactly the specified draw length, making precise adjustment critical. Setting a compound bow to the wrong draw length (even one inch too long or too short) produces characteristic form problems: too long causes the archer to lean back or shift their head to reach full draw; too short causes the bow arm to be over-bent and limits power transfer. Always have a US compound bow dealer verify your draw length setting with a draw board or arrow before shooting the bow for the first time.
What US Beginners and Club Archers Ask Most About Archery Draw Length
The easiest home measurement is the wingspan method used by USA Archery. Stand naturally with both arms outstretched horizontally and have someone measure from the tip of your left middle finger to the tip of your right middle finger, across your back. Measure in inches. Divide this number by 2.5 to get your draw length. For example, a wingspan of 68 inches gives a draw length of 27.2 inches, which rounds to 27 inches for bow fitting. If no one is available to help you measure, you can use the height method: measure your standing height in inches and divide by 2.5. This is a good approximation because most people have a wingspan very close to their height. For either method, ensure you are standing naturally with arms relaxed outward, not straining or stretching to reach maximum span, which would produce an artificially long measurement and result in an incorrect draw length specification.
For experienced archers with established form, the shooting position method (draw to anchor measurement) is the most accurate because it measures the actual distance traveled by the string during your real draw. For beginners who do not yet have consistent form, the wingspan method is more reliable because beginners’ anchor points and draw mechanics change significantly during the first months of practice, making a measurement based on current form potentially misleading. USA Archery’s standard approach for its Learn to Shoot programs uses the wingspan method for initial bow setup, then re-evaluates draw length after 6 to 12 sessions once the archer has developed more consistent mechanics. If your wingspan and height methods produce significantly different results (more than 1 inch apart), have a USA Archery certified instructor measure your actual draw using a draw check arrow (a see-through arrow used in pro shops to observe the arrow tip position at full draw) to determine your actual functional draw length.
For a 10-year-old child, draw length depends on wingspan just as it does for adults. A typical 10-year-old has a wingspan of approximately 48 to 56 inches, producing draw lengths of 19 to 22 inches. At USA Archery youth clubs and school programs, most 10-year-olds shoot with draw lengths of 20 to 22 inches on youth recurve bows of 48 to 54 inches AMO length. Draw weights for 10-year-olds should be 10 to 20 pounds to allow proper form development without strain. USA Archery’s Youth Program, accessible at usarchery.org, recommends that youth archers be properly fitted at a certified club rather than purchasing bows online or at general sporting goods stores without a fitting, because children’s proportions vary widely at this age and a bow that fits perfectly at age 10 may need adjustment or replacement by age 12 as the child grows. Many US archery clubs offer youth loaner equipment programs that allow children to use club bows fitted to their current size, with parent purchases deferred until the child’s draw length stabilizes at the end of a growth phase.
Your physical draw length (the distance your particular body requires to reach a comfortable anchor point) is the same regardless of bow type. The practical difference is how each bow type handles that draw length. Recurve bows have no mechanical stop: you can draw the string as far back as your form allows, and many recurve archers learn to extend slightly beyond their natural wingspan measurement draw length through deliberate form training. Compound bows have a hard mechanical wall: the cams are set to a specific draw length (in half-inch increments), and the bow stops at that exact point with a significant reduction in holding weight due to the let-off (typically 65 to 90 percent on most US compound bows). This means compound bow draw length must match your physical draw precisely, while recurve draw length specifications are guidelines for initial bow fitting that can be refined through instruction. The compound bow draw length setting also affects the brace height and draw cycle, so changing the draw length module by even one increment changes the bow’s feel and performance characteristics, not just the peak draw distance.
USA Archery recommends that adult beginners start with 20 to 30 pounds for recurve and 25 to 40 pounds for compound. These weights allow the archer to learn proper form, develop consistent anchor point and release, and shoot 100 to 200 arrows per session without muscle fatigue causing form breakdown. For youth beginners (under 14), 10 to 20 pounds is appropriate for recurve. A common misconception among new US archers (especially men) is that heavier draw weights are necessary for effective archery: in target archery, the most important factor is consistent form across every shot, not raw drawing power. Even at 25 to 30 pounds, a well-placed recurve arrow at 18 meters (indoor club distance) is entirely consistent. Bowhunting does require higher draw weights (most US states require a minimum of 35 to 45 pounds for hunting white-tailed deer, with 40 pounds being the most common state minimum), which is an appropriate goal for archers planning to hunt after developing consistent form at lower draw weights over a full year of practice.
For a 28-inch draw length, the recommended recurve bow AMO length is 64 to 68 inches. At 28 inches of draw, a 64-inch bow produces slightly more finger pinch than a 66 or 68-inch bow because the shorter bow creates a sharper string angle at full draw, which can be uncomfortable for finger shooters and can affect arrow flight. Most US archery clubs and Olympic recurve setups for 28-inch draw archers use 66 to 68-inch bows. The 66-inch bow is the most common club and competition length for archers in the 27 to 29-inch draw range. Popular US club recurves in the 66 and 68-inch sizes include the Samick Sage (available at most US archery pro shops and on Amazon), the SF Archery Axiom series, and competition-level bows from Hoyt and Win and Win available through authorized USA Archery dealers. For compound bows, a 28-inch draw length is in the center of the typical adult range (24 to 30 inches), meaning virtually all US compound bow models can be configured for 28-inch draw without requiring specialty modules.
For a 27-inch draw length, your arrows should be a minimum of 28 to 28.5 inches total length (draw length plus 1 to 1.5 inches of safety overhang beyond the arrow rest at full draw). The standard arrow cut length for a 27-inch draw is typically 28 inches, which provides a full inch of safety overhang when the field point or broadhead extends in front of the rest at full draw. For beginning archers or those still refining their draw length, cutting arrows to 29 inches provides additional safety margin while draw length stabilizes over the first season. Arrow length is measured from the bottom of the nock groove to the end of the shaft, not including the installed point. Most US archery pro shops can cut arrows to custom lengths with a compound miter saw or arrow saw, a service typically included free with arrow purchases at specialty archery shops. Never shoot arrows that have been cut shorter than your draw length plus 1 inch: the point will be behind the arrow rest at full draw, creating a dangerous condition that can result in the arrow falling off the rest and the bow hand contacting the point on release.
USA Archery is the national governing body for the sport of archery in the United States, recognized by the US Olympic and Paralympic Committee as the official organization responsible for selecting and training US Olympic and Paralympic archery teams. USA Archery is headquartered in Colorado Springs, Colorado, at the US Olympic and Paralympic Training Center. In addition to elite athlete development, USA Archery oversees the National Training System (NTS), the standardized teaching methodology used across all USA Archery certified clubs and instructors, and operates the Learn to Shoot program for beginners. The wingspan divided by 2.5 draw length formula is part of the USA Archery NTS curriculum and is taught consistently across all USA Archery certified instructors. USA Archery also oversees national target archery competition through USA Archery tournaments, the US collegiate archery federation (through its college program), and Para archery programs for US adaptive archers. Their website at usarchery.org has a club finder that locates affiliated ranges in all 50 US states, most of which offer beginner programs where draw length fitting is part of the introductory curriculum.
Youth archers’ draw lengths change significantly as they grow, typically by 1 to 2 inches per year during active growth phases (ages 10 to 16). A child who starts archery at age 10 with a 20-inch draw length may be shooting a 24 to 26-inch draw by age 14. This growth pattern is why USA Archery and most US youth archery programs recommend that families delay purchasing expensive bows for young archers until at least age 12 to 14, and instead use club loaner equipment (adjusted as the child grows) or purchase inexpensive youth bows that can be replaced inexpensively as draw length increases. If purchasing a bow for a growing youth archer, look for models with wide draw length adjustment ranges: many youth compound bows now offer 14 to 30-inch draw length ranges through limb and cam adjustments, allowing a single bow to serve a child through several years of growth. Most US recurve bow setups for youth require limb changes as the child grows, since the optimal bow AMO length changes with draw length. Re-measuring wingspan at the start of each new archery season is the standard practice at USA Archery youth clubs, with bow adjustments made accordingly.
Let-off is the percentage reduction in holding weight at full draw on a compound bow, caused by the eccentric cam system reaching its mechanical advantage peak. At 70 percent let-off (common on US hunting compound bows), a bow with a 60-pound peak draw weight requires holding only 18 pounds at full draw. At 80 to 90 percent let-off (common on competition compound bows), holding weight drops to 6 to 12 pounds at full draw. Let-off is directly tied to draw length because it occurs at exactly the cam’s hard wall position: the mechanical stop that defines the set draw length. If a compound bow is drawn past the set draw length (past the wall), let-off is lost and holding weight increases dramatically. This mechanical relationship means that compound draw length must be set precisely: even half an inch too short prevents the archer from reaching the full let-off and back wall, and half an inch too long causes the archer to lean back or twist to reach the stop. Draw length and let-off settings on US compound bows are adjusted simultaneously by changing the draw length module on the cam, with the module size determining both measurements at once.
Dominant eye (also called ocular dominance) determines which eye should be used to aim in archery, and it significantly affects bow selection. Right-eye-dominant archers typically shoot a right-handed bow (held in the left hand, drawn with the right). Left-eye-dominant archers typically shoot a left-handed bow. The complication arises when an archer has cross-dominance: right-handed with left dominant eye, or vice versa. For right-handed cross-dominant archers, USA Archery certified instructors typically recommend one of three approaches: shooting a left-handed bow despite being physically right-handed (which some people adapt to well), closing the non-dominant eye during aiming (effective for recurve, less so for compound due to peep sight aiming), or using an eye patch or blinder on the sight to force the bow eye to aim. Cross-dominance is more common than most people realize: approximately 30 percent of the population has some degree of cross-dominance. Testing dominant eye is simple: make a triangle with your thumbs and forefingers, hold both arms out, center a distant object in the triangle with both eyes open, then close each eye alternately. The eye that keeps the object centered is the dominant eye. Draw length calculation and bow sizing are the same regardless of eye dominance, but hand selection determines which side the bow shelf and sight mount appear on, and bows are specifically manufactured for right-hand and left-hand use.
Olympic recurve archery is shot at a standard distance of 70 meters (approximately 76.5 yards) on a 122-centimeter target. US Olympic and national team archers use the same draw length formula as all archers, with lengths typically ranging from 25 to 30 inches depending on the athlete’s wingspan. Most US senior national team members (men averaging around 5’10” to 6’1″) shoot draw lengths of 28 to 30 inches on 66 to 70-inch recurve bows with draw weights of 38 to 48 pounds for women and 44 to 52 pounds for men. The recurve bows used by US Olympic archers are precision-machined carbon fiber and aluminum structures from manufacturers including Hoyt (Salt Lake City, Utah, the most widely used US brand at the Olympic level), Win and Win (Korean brand widely distributed in the US), and SF Archery. US Olympic archery performance is overseen by USA Archery’s National Training Center in Colorado Springs, where coaches certified through the World Archery Education Program train US elite archers. Brady Ellison, Michelle Kroeden, and other current US national team members all established their draw lengths through the same wingspan formula used in this calculator, refined through years of coaching and competition.
Shooting at an incorrect draw length consistently produces specific, identifiable form problems and can cause injury over time. A bow set too long forces the archer to over-extend the bow arm, tip the shoulder forward, or lean back to reach full draw, producing inconsistent arrow flight and shoulder strain. A bow set too short causes the archer to bunch up at the shoulder, lose bone alignment in the draw arm, and deliver less energy to the arrow at release. For compound bows, shooting past the set draw length (past the hard wall) is mechanically dangerous and can cause cam lean, cable damage, and equipment failure in extreme cases. The correct draw length for a given archer typically has a tolerance of about half an inch in either direction: shooting at 27 inches versus 27.5 inches produces minor but noticeable differences in comfort and consistency. Shooting at 26 or 28 inches for an archer whose measurement calls for 27 will produce clear form issues visible to any certified instructor. If you consistently feel cramped or over-extended after following the calculator’s recommendation, schedule a fitting with a USA Archery certified instructor who can observe your draw in person and fine-tune the measurement to your actual shooting mechanics.
USA Archery operates a nationwide network of affiliated clubs and certified Learn to Shoot instructors. The USA Archery club finder at usarchery.org/programs/clubs allows US residents to search by zip code for nearby clubs offering beginner programs. Most USA Archery clubs offer Learn to Shoot sessions that include equipment, basic instruction, and draw length fitting for a per-session fee of 25 to 50 dollars. YMCA branches in many US cities run archery programs using USA Archery curriculum. The National Field Archery Association (NFAA, headquartered in Yankton, South Dakota) operates a parallel network of US archery clubs focused on field archery (outdoor unmarked distance courses). Major US sporting goods retailers with dedicated archery sections including Bass Pro Shops, Cabela’s, and Scheels often have certified bow technicians who can perform draw length fittings during bow purchase. For compound bowhunters specifically, local archery pro shops affiliated with the Archery Trade Association (ATA) provide the most comprehensive fitting and setup services for hunting compound bows, including setting draw length modules and tuning arrow spine selection to the specific draw weight and draw length combination.
The Archery Trade Association (ATA), headquartered in Harrisburg, South Dakota, is the US trade organization for archery manufacturers, retailers, and distributors. Formerly called the Archery Manufacturers and Merchants Organization (AMO), the ATA sets the industry technical standards used by all US bow and arrow manufacturers, including the official draw length measurement standard. The ATA (formerly AMO) draw length standard measures from the deepest point of the bow’s pistol grip to the nocking point on the string at full draw, which is the specification printed on all US bow packaging and used by pro shops when setting compound bow draw length modules. USA Archery’s educational programs use this same standard for student bow fitting. The practical result is that the draw length you calculate with the wingspan formula is the same number used to set a compound bow’s modules and select a recurve bow AMO length at any US retailer. There is no meaningful functional difference between USA Archery’s and ATA’s draw length definitions for practical bow fitting purposes.
Draw weight requirements for bowhunting vary by US state and by target species. For white-tailed deer (the most widely hunted big game animal in the US), most states require a minimum draw weight of 35 to 45 pounds, with 40 pounds being the most common minimum. States including Texas, Ohio, Wisconsin, Pennsylvania, Michigan, and New York all require at least 35 to 40 pounds for deer hunting with archery equipment. For elk and large game, most western US states require 40 to 50 pounds minimum. For turkey hunting, many US states have lower minimums (25 to 35 pounds) given the smaller game size. Your draw length does not directly affect draw weight requirements, but the correct draw length setting on a compound bow is critical to achieving and maintaining consistent peak draw weight: a compound bow set 1 inch short of your draw length may not achieve its rated peak draw weight because the cams do not fully rotate through their draw cycle, potentially putting the hunter below the legal minimum even if the bow is specified above it. Always verify your compound bow’s actual draw weight at your set draw length using a bow scale, not just the bow’s labeled draw weight specification.
Draw length calculations use the USA Archery wingspan formula (wingspan divided by 2.5) and height formula (height in inches divided by 2.5), which are the standard methods published by USA Archery for use in its Learn to Shoot and National Training System programs. The shooting position method reflects the ATA (formerly AMO) direct draw measurement approach. Results are planning estimates for initial bow selection and should be verified with a USA Archery certified instructor or certified archery pro shop technician before purchasing or adjusting equipment. Draw length requirements can vary from formula estimates based on individual form, anchor point preference, and shooting style. Always ensure arrows are at least 1 inch longer than your draw length; never shoot arrows shorter than your draw length. Draw weight minimums for bowhunting vary by US state and species: always verify your state’s requirements at your state wildlife agency before purchasing hunting equipment. USCalculators.com has no commercial affiliation with USA Archery, the Archery Trade Association (ATA), Hoyt, Mathews, Samick, Bear Archery, Win and Win, or any archery manufacturer, retailer, or organization mentioned in this guide. For official USA Archery resources visit usarchery.org.