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Knot (kn) - Speed / Velocity Conversions

A knot is a unit of speed that is equal to to one nautical mile per hour. A nautical mile is based on the circumference of the Earth and is used by sea and air navigators. It is approximately one minute of arc measured along any meridian. The symbol for knot is kn.

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caretUnit Summary

The following tables provide a summary of the Speed or Velocity units (Per Hour, Per Minute, Per Second and Per Millisecond) within their respective measurement systems.

Per Hour

Unit Symbol
inches per hour in/h
feet per hour ft/h
yards per hour yd/h
miles per hour mph
millimeters per hour mm/h
centimeters per hour cm/h
decimeters per hour dm/h
meters per hour m/h
kilometers per hour km/h
knot kn

Per Minute

Unit Symbol
inches per minute in/m
feet per minute ft/m
yards per minute yd/m
miles per minute mi/m
millimeters per minute mm/m
centimeters per minute cm/m
decimeters per minute dm/m
meters per minute m/m
kilometers per minute km/m

Per Second

Unit Symbol
inches per second in/s
feet per second ft/s
yards per second yd/s
miles per second mi/s
millimeters per second mm/s
centimeters per second cm/s
decimeters per second dm/s
meters per second m/s
kilometers per second km/s

Per Millisecond

Unit Symbol
millimeters per millisecond mm/ms
centimeters per millisecond cm/ms
decimeters per millisecond dm/ms
meters per millisecond m/ms
kilometers per millisecond km/ms

Note: For Speed or Velocity conversions, US Customary Units and the Imperial System are equivalent.

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