Measurement unit for a derived quantity.
- The metre per second, symbol m/s, and the centimeter per second, symbol cm/s, are derived units of speed in the SI.
- The kilometre per hour, symbol km/h, is a unit of speed outside the SI but accepted for use with the SI.
- The knot, equal to one nautical mile per hour, is a unit of speed outside the SI.
Back to the list