Speed Calculator
Calculate speed, distance, or time. Multiple unit support.
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Worked Example
Road trip: 180 miles driven in 3 hours.
Distance
180 miles
Time taken
3 hours
Average speed
60 mph
Time for 480 mi
8 hours
How it's calculated
- Speed
- Speed = Distance ÷ Time
- Distance
- Distance = Speed × Time
- Time
- Time = Distance ÷ Speed
Units are converted before dividing or multiplying (1 mile = 1.60934 km, 1 hour = 60 minutes = 3,600 seconds), so you can mix miles, kilometers, hours and minutes.
Frequently asked questions
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