Certified tool
Speed Converter
Convert meters per second, kilometers per hour, miles per hour, and knots.
Exact defined conversion
96.560640 km/h
60 mph → Kilometer per hour
Cross-system conversion: international customary → SI / metric. Factors are not silently aliased.
Systems: international → si.
Assumptions
- The international mile and international nautical mile (1852 m) are used.
- 1 mph = 1.609344 km/h exactly.
- Negative speeds are rejected.
Examples
- 60 mph = 96.56064 km/h.
- 1 knot = 1.852 km/h exactly.
- 1 m/s = 3.6 km/h.
How to use
- Enter a non-negative speed.
- Choose metric or customary / navigation units.
- Swap and copy when needed.
Limitations
- This does not convert fuel economy (mpg vs L/100 km).
- Posted road-sign rounding is a policy choice, not a unit definition.
FAQ
- Is a knot a nautical mile per hour?
- Yes. This tool uses the international nautical mile of 1852 meters.