Velocity Calculator
Find the average velocity of an object from the distance it travels and the time taken.
m
s
36 km/h
22.369 mph
Formula
Examples
| Input | Result |
|---|---|
| d = 100 m, t = 10 s | v = 10 m/s = 36 km/h |
About this calculator
Average velocity is the total distance travelled divided by the time taken: v = d / t. With distance in metres and time in seconds, velocity is expressed in metres per second (m/s). Multiplying by 3.6 converts m/s to kilometres per hour.
Strictly speaking, velocity is a vector with both magnitude and direction, while speed is its magnitude. For motion in a straight line the two are numerically equal. This calculator gives the average over the whole journey; the instantaneous velocity at any moment may be higher or lower.
Frequently asked questions
Divide the distance travelled by the time taken: v = d / t. Use metres and seconds to get metres per second.
Multiply the speed in metres per second by 3.6. For example, 10 m/s × 3.6 = 36 km/h.
Speed is how fast something moves; velocity also includes direction. For straight-line motion their numerical values are the same.
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