Understanding Archery Draw Length in 2026
Draw length is the single most important measurement in archery equipment fitting. It defines the distance from the back of the bow (the side facing the target) to the nocking point on the string when the archer is at full draw. An incorrectly set draw length causes poor accuracy, shoulder injuries, and bow torque.
The Archery Trade Association (ATA) and World Archery both define AMO (Archery Manufacturers Organization) draw length as the distance from the nocking point to the throat of the grip, plus 1¾ inches — the industry standard measurement used by all bow manufacturers.
Draw Length by Arm Span Reference Table
| Arm Span | Draw Length (inches) | AMO Standard | Bow Category |
|---|---|---|---|
| 152 cm / 60" | 24.0" | 24" | Youth / XS |
| 163 cm / 64" | 25.6" | 25.5" | Short |
| 168 cm / 66" | 26.4" | 26.5" | Short–Medium |
| 175 cm / 69" | 27.6" | 27.5" | Medium |
| 183 cm / 72" | 28.8" | 29" | Standard |
| 193 cm / 76" | 30.4" | 30" | Long |
| 203 cm / 80" | 32.0" | 32" | XL |
The Draw Length Formula
Method 1: Arm Span (Recommended)
Arm span is measured fingertip to fingertip with arms extended horizontally at shoulder height. This is the most accurate home-measurement method.
Method 2: Height (Rough Estimate Only)
Height and arm span are often equal (Leonardo da Vinci's Vitruvian Man proportion), but individual variation of ±2–4" is common. Use arm span whenever possible.
How to Measure Arm Span Accurately
- 1Stand against a flat wall. Remove shoes and bulky clothing.
- 2Extend both arms horizontally at shoulder height, fingers fully spread.
- 3Have a helper mark both middle fingertips with a pencil on the wall.
- 4Measure the distance between the two marks with a tape measure.
- 5Divide by 2.5 (or use our calculator) to get draw length in inches.
Draw Length and Arrow Selection
Arrow length must always exceed draw length for safety:
Arrow spine (stiffness) is also determined by draw length plus draw weight. Longer draw lengths require stiffer (lower number) spine ratings for consistent arrow flight.
Compound vs. Recurve Draw Length Setting
Compound Bows
Modern compound bows have adjustable draw length via rotating modules on the cams. Most quality compound bows adjust ±3" from the centre setting. An incorrectly set compound cam causes:
- Too long: Hyperextended elbow, shoulder impingement, poor anchor point.
- Too short: Collapsed form, loss of back tension, reduced arrow speed.
Recurve Bows
Recurve draw length is not mechanically fixed — the archer draws as far as their form allows. However, bow length (limb length) should match draw length:
- Draw length < 26": Use a 62–64" bow
- Draw length 26–28": Use a 66–68" bow
- Draw length > 28": Use a 68–70" bow
Signs of Incorrect Draw Length
- Too Long: Straight or hyperextended bow arm, difficulty reaching anchor, collapsed chest at full draw.
- Too Short: Excessive elbow bend, head pushed away from string, creeping forward before release.
- Correct: Slight bend in bow arm elbow, relaxed shoulder, consistent cheekbone anchor point.