Speed Conversion

Use our Speed Conversion Calculator to quickly convert speed units between different measurement systems. Supports kilometers per hour, miles per hour, meters per second, and more.

Length Weight Temperature Volume Area Speed Data Pressure Energy Power Time

About Speed Conversion

Speed Converter — convert km/h, mph, m/s, ft/s and more. Useful for travel planning, vehicle data, and physics problems.

How to use

  1. Enter the speed value.
  2. Choose the current unit and the target unit.
  3. Click Convert for the result.

Examples

100 km/h ≈ 62.1371 mph; 1 m/s ≈ 3.6 km/h.

Tips

  • For vehicle specs, check manufacturer units (often mph or km/h).
  • Use meters/second for physics and km/h for road speeds.

FAQs

Are these conversions exact?
They use standard conversion factors; displayed values may be rounded for readability.

Need conversions for nautical knots or Mach? Tell us and we’ll add them.