Speed Converter
Instantly convert between kilometers/hour, meters/second, miles/hour (mph), knots and feet/second. For everything from vehicle speed to wind and sea speed.
All conversions — 1 km/h
Meter/second (m/s)0.2778
Mile/hour (mph)0.6214
Knot (knot)0.54
Foot/second (ft/s)0.9113
About
A speed converter makes it easy to switch between common units like km/h and mph (miles per hour) and the m/s unit used in physics. Knots are used as a speed measure in shipping and aviation.
Enter a value and a source unit and you'll see the equivalents across all speed units. The calculation runs instantly in your browser.
How to use
- Enter the speed value you want to convert.
- Pick the source unit (e.g. km/h) and the target unit (e.g. mph).
- The result and all unit equivalents are listed instantly.
Frequently Asked Questions
- How many mph is 100 km/h?
- 100 km/h ≈ 62.14 mph (miles per hour).
- How many km/h is 1 knot?
- 1 knot = 1.852 km/h (one nautical mile per hour).