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Converters
Speed Converter
Convert speed between miles per hour, kilometers per hour, meters per second, knots and feet per second. For driving, running, sailing and physics.
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💡 Good to know: Light travels at exactly 299,792,458 m/s — a fixed constant that the metre itself is now defined from.
Worked example
1 m/s = 3.6 km/h
Units
m/s · km/h · mph · Knots · ft/s
Frequently asked
How fast is 60 mph in km/h?
About 96.6 km/h.
What is a knot?
One nautical mile per hour — about 1.852 km/h.