Speed Calculator

Average speed equals distance divided by time. Covering 150 km in 1.5 hours means an average speed of 100 km/h. Enter the distance in kilometers and the time in hours (90 minutes = 1.5).

Average speed smooths out stops and slowdowns, which is why a road trip at 130 km/h on the highway often averages barely 100. Runners usually prefer pace (minutes per km) — our pace calculator converts to that format — and the km to miles converter helps with mph comparisons.