Speed, Distance, Time
Find speed, distance or time with v = s / t, unit conversion (km/h, m/s, minutes, hours) and a step-by-step solution.
The speed, distance and time calculator finds any of the three quantities from the other two for uniform motion. Use any units — m/s, km/h, meters, kilometers, seconds, minutes, hours: the calculator converts them to SI and writes a step-by-step "Given — Solution — Answer" solution.
Formulas
| Find | Formula |
|---|---|
| Speed | v = s / t |
| Distance | s = v · t |
| Time | t = s / v |
A handy memory triangle: s on top, v and t at the bottom — cover the unknown to see the formula.
Converting km/h and m/s
1 km/h = 1000 m / 3600 s = 1/3.6 m/s, 1 m/s = 3.6 km/h
Example 1. A cyclist rides 2 km in 5 minutes: v = 2000 m / 300 s ≈ 6.67 m/s = 24 km/h.
Example 2. A train runs 2.5 h at 60 km/h: s = 60 · 2.5 = 150 km.
Example 3. How long does 300 km take at 75 km/h? t = 300 / 75 = 4 h.
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