Unit Converter

Speed Converter

Convert kilometers per hour, miles per hour, meters per second, and knots. Use this free online speed converter with common examples and fast unit conversion results.

About This Speed Converter

Speed Converter pages help people compare common measurement units quickly for everyday calculations, schoolwork, technical estimates, and reference checks.

Enter a valid number to calculate a conversion.

Popular Speed Conversions

Available Units

  • Meter per second (m/s)
  • Kilometer per hour (km/h)
  • Mile per hour (mph)
  • Knot (kn)
  • Foot per second (ft/s)

Common Speed Examples

  • KM/h to MPH
  • MPH to KM/h
  • Knots to KM/h

Speed Converter Tips

Use the calculator when you need to compare speed values across different systems of measurement.

If you repeat the same conversion often, open one of the example links above so the source unit and target unit are already selected.

For clearer results, double-check that the starting value and both units match the measurement system you intend to use.

Related Unit Converter Pages

Frequently Asked Questions

How do I use this speed converter?

Enter a number, choose the source unit and target unit, and the page will calculate the converted value instantly.

Which units are included in this speed converter?

Meter per second (m/s), Kilometer per hour (km/h), Mile per hour (mph), Knot (kn), Foot per second (ft/s).

Is this speed converter free to use?

Yes. The calculator is free to use and works directly in your browser.