Speed Converter

Convert km/h, mph, m/s, knots and feet per second. Free to use online with no sign-up. Fast and mobile-friendly. Get quick results on any device.

Useful for driving, cycling, aviation, marine forecasts and science.

Formula

All units are converted through metres per second.

Example

100 km/h is about 62.14 mph.

Frequently asked questions

Is the speed converter free to use?: Yes. The tool is free to use and does not require an account.
Is my input stored?: For browser-based tools, your input stays on your device. The URL shortener is the exception because short links must be stored to redirect later.