Bow Tuning Calculator
Interpret paper tuning tear results and get specific adjustment recommendations for nock point and arrow rest.
Inputs
Results
Recommended Adjustment
Well tuned — no adjustment needed
How to Use This Calculator
- Shoot an arrow through a paper target at 6-8 feet and observe the Tear Direction (Left, Right, High, Low, or Center).
- Measure and enter the Tear Size in inches.
- Select your Rest Type (Whisker Biscuit, Drop Away, or Blade).
- Review the Recommended Adjustment, Nock Point move, and Rest Adjustment.
- Make one adjustment at a time and retest until you achieve a bullet hole (center tear).
What each input means
- Tear Direction
- Direction the paper tear extends from the arrow hole.
- Tear Size
- Length of the paper tear from point hole to vane tear edge.
- Rest Type
- Arrow rest type affects available adjustments.
What each result means
- Recommended Adjustment
- What to adjust based on tear analysis.
- Nock Point
- Vertical nock point adjustment.
- Rest Adjustment
- Horizontal rest adjustment.
- Tune Score
- Lower is better; 0 = perfect bullet hole.
How this is calculated
Worked example, using the default values
- Identify Input ParametersTear Direction = 5, Tear Size = 0.5, Rest Type = 1 = 3 input(s) provided
- Calculate Recommended AdjustmentWell tuned — no adjustment needed = Well tuned — no adjustment needed
- Calculate Nock PointNone = None
- Calculate Rest AdjustmentNone = None
Engine last updated . Checked against 3 independently-derived tests — how we verify calculators.
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