Calculate & Convert

Speed · Distance · Time

Solve for speed, distance or travel time from the other two values.

Enter values

km
km/h
hours

The formula

distance = speed × time

One relationship, distance = speed × time, rearranges three ways depending on which value is missing. Keeping units consistent is what matters most: kilometres with hours gives km/h, and mixing minutes into the same equation is where most errors creep in.

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Example calculations

Common questions this calculator answers — select one to load its values.

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Frequently asked questions

Which fields are used?+
Only the two fields needed for your chosen "solve for" are read — the third is ignored. Units assume km and hours; use the Speed Converter for other units.
All calculations run locally in your browser. Nothing you type is sent to a server.