Arrow Kinetic Energy Calculator
Calculate arrow kinetic energy and momentum to determine hunting adequacy for different game sizes.
Inputs
gr
fps
Results
Kinetic Energy
69.65 ft-lbs
Hunting Classification
Dangerous Game (moose, grizzly)
Momentum0.4973 slug·ft/s
How to Use This Calculator
- Enter your Total Arrow Weight in grains (use the Arrow Build calculator to find this).
- Set your Arrow Speed in fps using a chronograph at the shooting line.
- Review Kinetic Energy in ft-lbs — 25+ for deer, 42+ for elk, 65+ for large dangerous game.
- Check Momentum for penetration assessment — higher momentum drives deeper.
- Use the Hunting Classification to confirm your setup meets the energy minimum for your target game.
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