Physics

Instant, private, and free

Car Crash Force Calculator.

Estimate average force from mass, speed change, and stopping time.

On-device calculationNo signup

01

Set your values

Results update as you type.

02 / ANSWER

Vehicle mass

Initial speed

Final speed

Stopping time

averageForceN

300,000.00000N

impulseNs

30,000.00000N·s

averageAccelerationMps2

-200.00000m/s²

Results update automatically as you type.