Speed Distance Time Calculator
Tools & UtilitiesPick what you want to find — speed, distance, or time — and enter the other two.
Speed
Switch units freely — results convert automatically between km/h, mph, m/s, km, miles, and more.
Distance = Speed × Time
Three variables, one equation. Provide any two and the calculator solves for the third.
Examples — One Per Solve Mode
How unit conversion works
The engine always computes in km/h, km, and hours. When you select different units — m/s, metres, or minutes — the interface converts your inputs to the engine's base units before the calculation, and converts the result back for display. You can freely mix input units (distance in km, time in minutes) without doing any conversions yourself.
Frequently Asked Questions
Distance = Speed × Time. Rearranging: Speed = Distance ÷ Time; Time = Distance ÷ Speed. Enter any two values and the calculator solves for the third.
Last reviewed August 2026
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