Airsoft Calculators

FPS ⇄ Joules Calculator
Convert FPS to Joules and Joules to FPS with our easy airsoft calculator. Perfect for checking field limits and ensuring safe, consistent gameplay.

Spring, Barrel & BB → Velocity & Joules Calculator
Estimate your airsoft gun’s FPS and Joule output by entering barrel length, spring rating, and BB weight.

Rounds-Per-Second (RPS) Calculator
Find your airsoft gun’s rate of fire (RPS) based on gear ratio, motor speed, and battery voltage.

Cylinder-to-Barrel Volume Efficiency Calculator
Discover the best cylinder type for your AEG based on barrel length, BB weight, and spring strength.

Airsoft “Cool Factor” Calculator
Results may vary

HPA Tank Size Number of Shots Estimator
HPA Tank Shots Estimator
Estimate how many shots your HPA setup can fire based on tank size, fill pressure, and engine efficiency.