To determine the draw length enter the wingspan (inches) into the calculator and it will display draw length (inches) in the result field. For advance level calculation enter the height (inches), and arm length (inches) inputs, the calculator will display adjusted draw length (inches) in the result.
What Is Draw Length Calculator
The Draw Length Calculator helps archers determine their optimal draw length. Proper draw length is crucial for accuracy and comfort. This calculator provides both a Basic and an Advanced mode to suit different needs.
Formulas
1. Basic Calculation
| Variable | Description |
|---|---|
| Wingspan | Distance from fingertip to fingertip (in inches) |
Formula:
| Draw Length = (Wingspan - 15) / 2 |
2. Advanced Calculation
| Variable | Description |
|---|---|
| Height | Height of the archer (in inches) |
| Arm Length | Length of the archer’s arm (in inches) |
Formula:
| Adjusted Draw Length = ((Height + Arm Length) / 2 - 15) / 2 |
Calculation Examples
| Variable | Value |
|---|---|
| Wingspan | 70 inches |
Calculation:
| Step | Calculation |
|---|---|
| Draw Length = (Wingspan – 15) / 2 | (70 – 15) / 2 = 27.5 inches |
2. Advanced Example
| Variable | Value |
|---|---|
| Height | 68 inches |
| Arm Length | 32 inches |
Calculation:
| Step | Calculation |
|---|---|
|
Adjusted Draw Length = ((Height + Arm Length) / 2 – 15) / 2 |
((68 + 32) / 2 – 15) / 2 = 17.5 inches |
How to Use the Calculator
| Step | Basic Calculator | Advanced Calculator |
|---|---|---|
| 1. Select Calculator Type | Click “Basic Calculator” button. | Click “Advanced Calculator” button. |
| 2. Enter Values | Enter Wingspan in inches. | Enter Height and Arm Length in inches. |
| 3. Click Calculate | Click “Calculate” button. | Click “Calculate” button. |
| 4. View Result | View Draw Length in the result field. | View Adjusted Draw Length in the result field. |
| 5. Reset Fields | Click “Reset” button to clear all fields. | Click “Reset” button to clear all fields. |
FAQ
1. What is draw length?
Draw length is the distance an archer pulls the bowstring back before release. It affects accuracy and comfort.
2. Why is draw length important?
Proper draw length ensures optimal performance and prevents strain or injury.
3. How often should I check my draw length?
Check your draw length periodically, especially if you notice changes in your form or comfort while shooting.