Speed converter
km/h, mph, m/s and knots
Speed converter
To
1 m/s = 3.6 km/h
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About the Speed converter
Speed units depend on context: road signs use km/h or mph, physics uses meters per second, and ships and aircraft use knots. Converting between them is essential for travel, sport, and science.
Everything converts through meters per second. One km/h is exactly 1/3.6 m/s, one mph is exactly 0.44704 m/s, and one knot is one nautical mile per hour — about 0.5144 m/s.
Common use cases
- Understanding foreign speed limits while driving abroad
- Wind speed readings between knots and km/h
- Running and cycling pace comparisons
- Physics problems requiring SI units
Frequently asked questions
Multiply mph by 1.609344. For a quick estimate, multiply by 1.6 — so 60 mph is about 96 km/h (exactly 96.56).