Speed Distance Time Calculator
Work out speed, distance or time from the other two, in km/h, mph, m/s, knots, kilometres, miles and more.
Speed in other units
| Kilometres per hour | 66.666667 km/h |
|---|---|
| Metres per second | 18.518519 m/s |
| Miles per hour | 41.424746 mph |
| Knots | 35.99712 kn |
| Feet per second | 60.756294 ft/s |
Working
Speed = distance ÷ time = 100 km ÷ 1.5 h = 66.666667 km/h
The formulas
- Speed = distance ÷ time
- Distance = speed × time
- Time = distance ÷ speed
- Units are converted for you: 1 km/h = 0.2778 m/s, 1 mph = 1.609344 km/h, 1 knot = 1.852 km/h.
Speed Distance Time Calculator: frequently asked questions
What is the formula for speed, distance and time?
Speed = distance ÷ time, distance = speed × time, and time = distance ÷ speed. The calculator converts the units for you before applying them.
How do I calculate speed in km/h?
Choose Speed, enter the distance in km and the time in hours and minutes, and keep km/h as the unit. For example, 100 km in 1 hour 30 minutes is 66.67 km/h.
How long will a journey take?
Choose Time, enter the distance and your average speed. For example, 300 km at 60 km/h takes 5 hours.
How do I convert km/h to m/s?
Divide by 3.6. For example, 72 km/h is 20 m/s. To go from m/s to km/h, multiply by 3.6.
What is pace?
Pace is the time taken for each kilometre or mile, used by runners. It is shown in minutes and seconds, like 5:00 min/km for 12 km/h.