Average Pace Calculator

Enter the distance you ran and your time to get your average pace, then compare times at that pace from 400m splits to 5km, 10km, half and full marathon. Select a cell to see 400m track laps, switch units and copy results.

Created: 2026.09.16
Updated: 2026.10.01

Average Pace CalculatorEnter distance and time

Input

Enter distance and time to calculate pace

Unit

Distance

Elapsed time

hmins

Pace

/ km

Calculated from distance and time

Results update as you type

Results

Waiting for input

Times at this paceCurrent pace in the middle, slower on the left, faster on the right

Distance

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What average pace means

Elapsed time ÷ distance

Average pace is your total elapsed time divided by the distance. Even if the run mixed fast and slow stretches, the result is the time per km you would have run at one steady speed from start to finish. That makes it a handy yardstick for comparing today's run with other days or other distances.

Average pace Divide elapsed time by the distance run 10km 50:00 → 5:00 /km 10km 50:00 → 5:00 /km

Distance times Multiply the average pace by each distance. The middle column is your pace, with paces 10 and 20 seconds slower or faster on either side 5:00 /km → half 1:45:29 5:00 /km → half 1:45:29

Track laps One lap of the inside lane on a standard track is 400 m, so the distance is divided by 0.4 km 5km → 12.5 laps 5km → 12.5 laps

m and yd units For short distances, pace is shown per 100 m (or 100 yd) instead of per km 5:00 /km → 0:30 /100m 5:00 /km → 0:30 /100m

Uses the official 21.0975 km half and 42.195 km marathon, and every calculation runs in your browser

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