Speed Converter
Convert speeds between km/h, mph, m/s, ft/s and knots in one place.
Kilometers/hour (km/h)
1
Miles/hour (mph)
0.621371
Meters/second (m/s)
0.277778
Feet/second (ft/s)
0.911344
Knots (kn)
0.539957
Formula
1 mph = 1.609344 km/hHow to use the Speed Converter
- 1Pick the unit to enter
- 2Type the speed
- 3Read all other units
Frequently Asked Questions
How fast is 100 km/h in mph?
About 62.14 mph. Divide km/h by 1.609 to get mph.
What is a knot?
One nautical mile per hour = 1.852 km/h = 1.15078 mph — the standard unit in aviation and shipping.