Speed, distance and time calculator
Solve for speed, distance or time from the other two, with metric and imperial units.
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USDTHE NUMBERS, MADE CLEARInstant calculation
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Uses constant or whole-trip average speed, without adding stops, traffic or acceleration time. Time must be positive when solving speed; speed must be positive when solving time.
Common uses
Solve for speed, distance or time from the other two, with metric and imperial units.
BEHIND THE NUMBERSFormula & assumptions
v = d / t; d = v × t; t = d / v
Uses constant or whole-trip average speed, without adding stops, traffic or acceleration time. Time must be positive when solving speed; speed must be positive when solving time.