Bullet Energy Calculator
Enter the weight of your bullet and the velocity of the round below to calculate the energy and power factor of the round.
Many manufacturer provided velocities may or may not be over/under stated, different based on your gun and your shooting conditions. We recommend using a reading from your own chronograph if possible
You can enter data for up to 3 rounds at a time for comparison purposes
*Power Factor is another measure of bullet power using the formula: weight*velocity/1000. The power factor is used by several competitive shooting organizations to determine scoring and classification.
Is there a list of lethal energies by game/target size? I’d like to know what it takes to kill something, say a deer or a boar, so I know what a good value to look for is. Obviously more is better.