DYEHARD

BALLISTICS LAB

Muzzle Energy Calculator

01
Choose your projectileOptional — selecting ammo fills in the known weight.
02
Set the shotEnter chronograph speed and projectile weight.
LIVE ENERGY— J
VELOCITY— m/s
CALIBRE.68

SHOT RANGE

Trajectory simulation

Trajectory and distance are estimates based on a spherical projectile model, standard air density, a 1.8 m launch height and the selected calibre diameter. Real-world results will vary.
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Your shots

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Fire a shot to start comparing results.
How the muzzle energy calculator works

This calculator converts projectile weight in grams and chronograph velocity in feet per second (FPS) into muzzle energy in joules using the kinetic-energy formula E = ½mv².

Does calibre change muzzle energy?

No. Muzzle energy is determined by projectile mass and measured velocity. Calibre is used by the optional trajectory estimate because projectile diameter affects aerodynamic drag.

How accurate is the trajectory estimate?

The trajectory view is an educational estimate using a spherical projectile model, standard air density and the selected calibre diameter. Real-world projectile shape, wind, temperature and launcher setup can change actual results.

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