Speed Calculator

Calculate speed, distance, or time and convert between speed units.

Speed Calculator

Distance

Unit

Time

Unit

Speed Reference

Walking speed~5 km/h (3 mph)

Running speed~10-15 km/h (6-9 mph)

Highway speed~100-120 km/h (60-75 mph)

Speed of sound~1,235 km/h (767 mph)

Speed

Speed50.00 km/h

Formula

Speed = Distance / Time

Distance = Speed × Time

Time = Distance / Speed