Math
Speed, Distance & Time Calculator
Calculate speed, distance, or time using the formula: Speed = Distance ÷ Time.
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Frequently Asked Questions
What is the formula for speed?
Speed = Distance ÷ Time. Distance = Speed × Time. Time = Distance ÷ Speed.
How do I convert km/h to mph?
Multiply km/h by 0.621371 to get mph. For example, 100 km/h = 62.14 mph.