Draw Length Calculator

Draw Length Calculator

Enter the arm span in inches in the online tool, and the calculator will determine the draw length.

Precisely measure the draw length for shooting a bow with our draw length calculator relative to the arm span.

What is Draw Length?

Draw length is the distance from the nock point of the string to the grip of the bow, plus 1.75 inches.

It is the distance pulled, measured from the apex of the string to the throat of the grip.

For an accurate estimation relative to your wingspan, you can use the draw length calculator.

Why Measure Draw Length?

Proper shooting form and accuracy depend on having a bow that fits. One of the most important measurements to ensure the right fit is the draw length.

Shooting an arrow of the correct draw length maximizes your potential as an archer by supporting proper form.
Draw length indicates how many inches an archer can effectively pull the bowstring.
It is essential for choosing a properly fitted bow.

How to Measure Draw Length for a Compound Bow?

Step 1: Measure your wingspan.
Step 2: Calculate the base draw length.
Step 3: Round down to the nearest half-inch.

Formula to Measure Draw Length

DL = WS / 2.5

DL = Draw length in inches

WS = Wingspan in inches

To determine the final draw length of the bow:

DL for Bow = (WS / 2.5) + 1.75

Practical Example

Suppose an archer has a wingspan of 40 inches.

DL = 40 / 2.5 = 16 inches

DL in centimeters = 40.64 cm

Final bow draw length:

16 + 1.75 = 17.75 inches

17.75 inches = 45.09 cm

Bow Draw Length Chart

Wingspan (inches)	Draw Length (inches)	Bow Length (inches)
60	24	25.5
65	26	27.5
70	28	29.5
75	30	31.5
80	32	33.5

How the Draw Length Calculator Works

Input

Enter your arm span
Click the "Calculate" button

Output

Draw length in inches and centimeters
Recommended arrow length

References

Draw Length Guide

Bow Length Guide