Unit conversion category

Speed Converter

Convert speed units such as meters per second, kilometers per hour, miles per hour, feet per second, and knots.

Featured Units

Meter per Second

Kilometer per Hour

Mile per Hour

Foot per Second

Knot

Speed measures distance traveled per unit of time.

Speed conversions are used for driving, running, aviation, shipping, weather, and physics.

Transportation, logistics, aerospace, sports analytics, and engineering depend on speed units.

Use kilometers per hour for most metric road contexts, miles per hour for US and UK roads, and knots for nautical or aviation speeds.

What is the SI unit of speed?

The SI derived unit of speed is meters per second.

What does mph mean?

Mph means miles per hour, the number of miles traveled in one hour.

Where are knots used?

Knots are used in marine navigation, aviation, and meteorology.

Explore a popular converter to get a fast, clearly explained result.