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100 km/h in mph
100 km/h is about 62.1 mph — a common motorway/highway speed.
62.1 mphmiles/hour
100 km/hkm/hour
| km/h | mph |
|---|---|
| 100 km/h | 62.1 mph |
| 120 km/h | 74.6 mph |
| 130 km/h | 80.8 mph |
To convert km/h to mph in your head, multiply by 0.62 (or take 60% plus a bit). Handy when driving abroad and reading a speedometer in the other unit.
Frequently asked questions
What is 100 km/h in mph?
About 62.1 mph.
How do I convert km/h to mph?
Multiply by 0.621 — or roughly, take 60% and add a little.