Fill in any two of distance, time and speed, and leave one blank to find it. Nothing leaves your browser.
speed = distance ÷ time, distance = speed × time, time = distance ÷ speed. Use consistent units, such as miles and hours.
Speed = distance ÷ time. Rearranged, distance = speed × time and time = distance ÷ speed.
Divide distance by time. 120 miles in 2 hours is 60 miles per hour.
Divide distance by speed. 120 miles at 60 mph takes 2 hours.
Any, as long as they match, such as km with hours giving km per hour.
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