Stopping Distance Calculator

Common questions that arise in traffic accident reconstructions are "What was the vehicle's initial speed given a skid length?" and "What distance is required to stop from this speed?". You will be able to answer these questions by simply entering the relevant data below.

Just fill in the pertinent information, press calculate and view the result.

Select units:

Choose your road condition:

Initial Speed Calculator Enter skid length in meters: Result:	Stopping Distance Calculator Enter speed in km/h: Result:

Please note:
This result is only a rough approximation for your information, as road conditions depend on a number of factors not accounted for in this sample calculation. Also, this formula does not take into account any speed loss due to collision forces.