Velocity Calculator
Find the average velocity of an object from the distance it travels and the time taken.
m
s
- 1
Velocity
v = 100 ÷ 10 = 10Divide distance (m) by time (s) to get average velocity in m/s. - 2
Convert to km/h
10 × 3.6 = 36
Formula
How this is calculated
The calculator takes two inputs: the distance an object travels and the time it takes to cover that distance. It divides one by the other to give the average velocity: v = distance / time. With distance entered in metres (m) and time in seconds (s), the result comes out in metres per second (m/s), the SI unit of speed.
To make the figure easier to interpret, the same value is converted into two everyday units. Multiplying m/s by 3.6 gives kilometres per hour (because 1 m/s = 3600 m per hour = 3.6 km/h), and multiplying by 2.23693629 gives miles per hour. These are exact unit conversions of one underlying speed, not separate measurements.
The result is an average over the whole journey: it assumes steady, straight-line motion and cannot show how fast the object was moving at any single instant, which may be higher or lower. Time must be greater than zero, since dividing by zero is undefined. Strictly, velocity is a vector with direction, while what is shown here is its magnitude (speed); for one-dimensional motion the two are numerically identical.
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.
Also known as
TG we-Calculate Editorial Team. (2026). Velocity Calculator [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/velocity-calculator
TG we-Calculate Editorial Team. "Velocity Calculator." TG we-Calculate. 2026. https://we-calculate.com/calculator/velocity-calculator.
TG we-Calculate Editorial Team, "Velocity Calculator," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/velocity-calculator
@misc{wecalculate_velocity_calculator, title = {Velocity Calculator}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/velocity-calculator}}, year = {2026}, note = {TG we-Calculate} }
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