Calculate speed, distance, or time — enter any two values and find the third.
This tool calculates any one of speed, distance, or time when the other two values are known, based on the fundamental motion formula.
Speed equals distance divided by time. Distance equals speed times time. Time equals distance divided by speed.
Select what you want to find, enter the two known values, then click Calculate.
Example: Traveling 150km in 2 hours gives a speed of 75 km/h.
Does this work with different units. This tool uses kilometers and hours; convert your values to these units before entering for accurate results.
What is average speed versus instantaneous speed. This calculates average speed over the entire distance and time, not the speed at any single moment.