Pace Calculator

Find a run's pace, time or distance from the other two, with the splits and your likely times over 5K, 10K, a half and a full marathon

Time Pace Distance

km miles

Distance

Enter a distance.

Time

As 50:00, 1:45:30 or 1h45.

A time as 50:00 or 1:45:30.

Pace or speed

per km

A pace as 5:00, or a speed as 12 km/h.

As 4:30, or a speed: 12 km/h, 8 mph.

Splits

Distance	Split	Time

Other distances, at the same effort

Race	Time	Pace

Peter Riegel's formula, time × (distance ratio)^1.06: what the same runner could do, trained for that distance. It tends to be optimistic beyond a half marathon for those who run little, and over a race shorter than the one given.