Speed Converter
Convert speeds between kilometers per hour, miles per hour, meters per second, knots and more.
1 Kilometers per hour (km/h) =
0.62137119
Miles per hour (mph)
All conversions
- Meters per second (m/s)
- 0.277778
- Miles per hour (mph)
- 0.621371
- Knots
- 0.539957
- Feet per second (ft/s)
- 0.911344
- Mach (sea level)
- 0.000816
How to use the Speed Converter
- 1Enter the amount you want to convert in the Value field.
- 2Pick the unit you are converting from and the unit you are converting to.
- 3Read the converted result instantly, or use ⇄ to swap the units.
- 4Scroll the “All conversions” panel to see the value in every other unit at once.
Frequently Asked Questions
▸How do I convert km/h to mph?
Multiply by 0.6214. 100 km/h ≈ 62.1 mph. Going the other way, multiply mph by 1.609.
▸What is a knot?
One nautical mile per hour = 1.852 km/h = 1.151 mph, used in aviation and shipping.
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