Speed Calculator
Enter a distance and the time taken to get average speed in several units.
Speed Calculator — enter your values
Average speed
80 km/h
- Metres per second
- 22.222 m/s
- Miles per hour
- 49.71 mph
Calculation
- 120 km ÷ 1.5 h = 80 km/h
Formula
Average speed = distance ÷ time. Rearranged, distance = speed × time and time = distance ÷ speed.