Speed Calculator
Speed from distance and time.
m
s
Worth Knowing
Speed is distance over time, but the number it gives is an average — it says nothing about how fast you were going at any single moment, which could have varied wildly. This is the distinction between average and instantaneous speed that a speedometer versus a trip summary makes concrete. Speed is also a scalar, carrying magnitude only; velocity adds direction, which matters the moment motion isn't in a straight line, as in circular or projectile motion.
How to Use
- Enter Distance into the first field of the Speed Calculator.
- Fill in the rest: Time.
- Your result appears instantly as you type — there's no submit button or page reload.