Overview
What Is a Speed Converter?
This tool converts speed measurements between miles per hour, kilometers per hour, meters per second, and knots.
Convert between mph, km/h, m/s, and knots instantly.
This tool converts speed measurements between miles per hour, kilometers per hour, meters per second, and knots.
Useful for understanding speed limits abroad, aviation/nautical speeds, or sports statistics.
Input the number you want to convert.
Choose the unit you're converting from and to.
The converted value updates automatically.
60 mph is approximately 96.6 km/h.
A knot is a unit of speed equal to one nautical mile per hour, commonly used in aviation and marine navigation.
Meters per second (m/s) is the standard SI unit for speed.
This is largely historical - the US retained imperial units (mph) while most other countries adopted metric (km/h).
Yes, converting mph to km/h (or vice versa) helps when driving abroad.
Results use standard conversion factors accurate to several decimal places.
Aviation commonly uses knots for airspeed, though other units may appear in different contexts.
This converts speed (distance/time), not pace (time/distance) - you'd need to invert the calculation for pace.
No, calculations happen entirely in your browser.
Yes, completely free with no sign-up required.