Science
Speed / Velocity Calculator
Solve for average speed, distance, or time using the classic v = d / t relationship.
Inputs
Speed / Velocity Calculator
Result
Speed
66.67 km/h
- km/h
- 66.67
- mph
- 41.42
- m/s
- 18.519
How it's calculated
v = d / t (average speed = distance ÷ time)
Common questions
What's the difference between speed and velocity?
Speed is a scalar — how fast. Velocity is a vector — how fast plus direction. Everyday use often mixes them, but in physics they're distinct.
How do I convert km/h to m/s?
Divide by 3.6. 90 km/h ÷ 3.6 = 25 m/s. To go the other way, multiply m/s by 3.6.
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