Speed Converter

Convert road, marine and scientific speed units.

About the Speed Converter

Convert speeds used in transport, navigation and science without manually combining distance and time factors.

How to use it

  1. Enter the speed amount.
  2. Choose the current and target speed units.
  3. Select Convert to view the result and ratio.

Common conversions

One meter per second equals 3.6 kilometers per hour. One mile per hour equals 1.609344 kilometers per hour, and one knot equals 1.852 kilometers per hour.

How it works

All speeds are normalized to meters per second before applying the destination-unit factor.

Notes

A knot is one nautical mile per hour. Use it for marine or aviation contexts rather than treating it as a statute mile per hour.