Free Speed Converter
km/h, mph, m/s, knots, ft/s.
| Miles per hour (mph) | 0.6213711922 |
| Meters per second (m/s) | 0.2777777778 |
| Knots (kn) | 0.5399568035 |
| Feet per second (ft/s) | 0.9113444153 |
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How to use the Speed Converter
- 1Enter a speed.
- 2Pick the unit.
- 3See all conversions.
Features
- 5 units
- All-at-once
- Mach approximation
Frequently Asked Questions
What is a knot?
One nautical mile per hour (1.852 km/h) — the standard in aviation and marine navigation.
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About the Speed Converter
Convert speed units for driving, aviation and running. The Speed Converter runs entirely in your browser — your data is processed locally and never uploaded to a server. Explore more Converters tools or browse all free online tools.