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Speed Converter
Convert speed between km/h, mph, m/s, knots and feet per second.
Free · No sign-up · Updated August 2026
1 m/s = 3.6 km/h
| Unit | 1 m/s = |
|---|---|
| Meter/second | 1 m/s |
| Kilometer/hour | 3.6 km/h |
| Mile/hour | 2.2369363 mph |
| Knot | 1.9438445 kn |
| Foot/second | 3.2808399 ft/s |
Converts instantly in your browser using precise factors. Nothing is uploaded.
🔒 This tool runs entirely in your browser. Your data is never uploaded.
Frequently asked questions
How fast is 100 km/h in mph?＋
100 km/h ≈ 62.14 mph. Convert between all common speed units instantly.
Is it free and private?＋
Yes — it's free, needs no sign-up, and converts instantly in your browser.