Speed distance time calculator
Find any one of speed, distance or time from the other two.
About this calculator
Choose what you want to work out and fill in the other two. Speed is distance divided by time, distance is speed times time, and time is distance divided by speed.
Results are shown in miles and miles per hour, with kilometres alongside.
Common questions
What are the formulas?
Speed = distance ÷ time. Distance = speed × time. Time = distance ÷ speed.
How do I enter minutes?
Use the hours and minutes boxes together, for example 2 hours and 30 minutes.
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