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Running Pace Calculator — Pace, Time, Distance & Race Splits

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Solve for Distance Known course/run distance.Distance unit Elapsed hours Whole/fractional hours of elapsed time.Elapsed minutes Minute component of elapsed time.Elapsed seconds Second component of elapsed time.Pace unit Used for entered target pace; solved pace always reports both min/km and min/mi.

Calculated result

5:00 min/km / 8:03 min/mi

Pace: 5:00 min/km = 8:03 min/mile

Average speed: 12 km/h = 7.456 mph

Elapsed time: 50:00

Distance: 10 km = 6.213712 mi

Constant-pace finish times

Distance	Finish time	Pace basis
1 km	5:00	5:00 /km
1 mile	8:03	5:00 /km
5K	25:00	5:00 /km
10K	50:00	5:00 /km
Half marathon	1:45:29	5:00 /km
Marathon	3:30:59	5:00 /km

Show the working

1. Normalize distance: 10 km = 10 km; elapsed time = 50:00 = 50 min.
2. Pace = time/distance = 50 ÷ 10 = 5 min/km.

Split-table times assume the same average pace is sustained exactly. They are arithmetic projections, not physiological race-performance forecasts.

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