Instructions
Speed converter
How to use
Enter a speed and choose the units.
Enter a speed and choose the units.
Supported input
1 mile = 1.609344 km and 1 knot = 1.852 km/h. Shown to four decimals.
Input example
12 km/h
Result example
3.3333 m/s · 5:00 per km
Troubleshooting
Values that are not numbers or are out of range are not calculated; the message says what to fix.
Limitations
Mach and the speed of light are not included.
How it works
Converts speed between km/h, m/s, mph and knots, and shows the pace per kilometre. 1 mile = 1.609344 km and 1 knot = 1.852 km/h. Shown to four decimals.
Units & precision
1 mile = 1.609344 km and 1 knot = 1.852 km/h. Shown to four decimals.