Speed & Velocity Converter
Convert speed between miles per hour, kilometers per hour, meters per second, and knots instantly.
About this converter
This speed and velocity converter lets you enter any speed, pick a starting unit, and choose the unit you want to convert to. It covers four common units — miles per hour, kilometers per hour, meters per second, and knots — using exact meter-per-second factors. The result card also shows all remaining units at a glance. A knot is defined as one nautical mile (1,852 m) per hour.
Field explanations
- Value
- The speed you want to convert. Enter any positive number including decimals.
- From
- The unit your value is already expressed in (e.g. mph, km/h).
- To
- The unit you want the primary result in. The remaining units are shown below for quick reference.