CQC Tactical — FPS & Joules Calculator
Convert FPS, BB weight, and velocity into Joules and ft·lbf energy output.
Results
Velocity
0.00 m/s
(350 fps)
Energy
0.00 J
0.00 ft·lbf
This calculator is for estimation only. Always chronograph at your field and follow local FPS/Joule limits.
CQC Tactical — FPS & Joules Chart
Interactive chart for common BB weights. Enter your chrono FPS (or field limit) to view equivalent joules for each BB weight.
FPS
Try typical CQB values: 280, 300, 330
– FPS
If range provided, table will show min/max joules.
Common: 0.20g, 0.23g, 0.25g, 0.28g, 0.30g
| BB Weight (g) | FPS | Joules (J) | Notes |
|---|
Formula used:
J = 0.5 × m(kg) × v(m/s)² where m = BB weight in kg and v = FPS × 0.3048. Values are rounded to two decimals.