Speed Distance Time Calculator
Enter any two of speed, distance and time to find the third.
Time
2.5hours
- In minutes
- 150 min
Leave the value you want to work out as 0.
v1.0 · Reviewed September 2026
How this is worked out
Leave the value you want at zero. Speed is distance ÷ time, distance is speed × time, and time is distance ÷ speed.
Worked example
- Speed 60 mph
- Distance 150 miles
- Time left at 0
150 ÷ 60
2.5 hours, which is 150 minutes
Assumptions and limits
- Uses miles, miles per hour and decimal hours, so 2.5 means two and a half hours, not two hours 50 minutes.
- Assumes a constant average speed with no stops, traffic or junctions, so real journeys take longer.
- Exactly two of the three values must be filled in, otherwise no result is shown.