Airsoft calculators
Check power, air volume and rate of fire before a game or a tune.
Three tools: BB energy and trajectory, cylinder-to-barrel Air Ratio, and AEG ROF. They run locally, no account needed.
Replica power
FPS to joules, effective range, hop-up and a trajectory chart.
Air Ratio
Match cylinder volume to barrel length and bore.
ROF
Rate of fire from motor RPM, gears and build efficiency.