Draw Length Calculator
Getting this measurement right ensures comfort, accuracy, and power in every shot. Our calculator uses the most popular method to give you an accurate and reliable estimate in seconds.
What is a draw length?
Your draw length is the distance from the nocking point on the bowstring to the pivot point of the bow's grip, plus about 1.75 inches. In simple terms, it's how far you pull the string back before releasing an arrow.
Getting this measurement right ensures comfort, accuracy, and power in every shot.
How to Calculate Draw Length
You can find your draw length easily using one of these proven methods:
Stand straight and stretch your arms out sideways, forming a “T” shape. Measure the distance between your middle fingers, from the tip to the tip. Divide that number (in inches) by 2.5.
Formula: Draw Length = Wingspan ÷ 2.5
Example: If your wingspan is 70 inches, then your draw length is 70 ÷ 2.5 = 28 inches.
Stand with your back flat against a wall. Stretch your arms out naturally without overextending. Measure across the body between fingertips. Subtract 15 inches and then divide the result by 2. That's your estimated draw length.
If you already have a bow: Draw the bowstring back to your natural anchor point. Have someone measure from the nock point to the pivot point of the grip. Add 1.75 inches — that’s your accurate draw length.
Why Draw Length Matters in Archery
Getting your draw length right isn't just about comfort; it's about performance and safety.
The Wingspan Method: A Step-by-Step Guide
Step 01
Measure Your Wingspan
Stretch your arms out to form a 'T' shape and have a friend measure the distance from the tip of one middle finger to the other.
Step 02
Enter the Value
Input your wingspan measurement in inches into our Draw Length Calculator.
Step 03
Click 'Calculate'
Press the button to get your recommended draw length instantly.
Step 04
Use Your Result
Use this result to determine the ideal bow and arrow length for your body, ensuring a perfect fit.
Measurement Tips
- Stand relaxed, not over-stretching.
- Keep arms parallel to the ground.
- Measure twice for consistency.
1. Wingspan: 69 inches
2. Formula: 69 / 2.5
3. Calculated Draw Length: 27.6 inches
This archer would likely start with a 27.5" or 28" draw length setting on their bow.
Common Problems & Solutions
If your form doesn't align with the checklist, your draw length may be too long or too short. Here’s how to spot the difference.
| Symptom | Probable Cause | Solution |
|---|---|---|
| Leaning head back to see through peep. | Draw Length Too Long | Shorten the draw length setting on the bow or use a shorter D-loop. |
| Floating anchor point; can't touch face. | Draw Length Too Long | Shorten the draw length. This is a clear sign of over-extension. |
| Feeling cramped; elbow bent sharply. | Draw Length Too Short | Increase the draw length setting. This will allow for proper expansion. |
| String hitting your nose hard. | Draw Length Too Short | Lengthen the draw length to create more space for a consistent anchor. |
Pro Tips for Measuring Draw Length
- Always measure without shoes to keep posture natural.
- Have a friend help you to measure your wing-span.
- Don't overextend your arms; stay relaxed.
- Recheck your draw length every 6–12 months as your form improves.
Further Archery Resources
Understanding Draw Length
An in-depth guide by the Archery Trade Association (ATA) on the importance of proper fit.
→ Visit ATA WebsiteCoaching and Form Guides
USA Archery provides resources for archers of all levels, including detailed form analysis.
→ Visit USA Archery