Running Pace Calculator
Work out the pace behind a finish time, or the finish time behind a pace — then see what an equivalent effort looks like at every other race distance.
Pace
5:00 /km
8:03 per mile
Speed
12.00 km/h
7.46 mph
Equivalent efforts at other distances
- 1K4:21
- 1 mile7:13
- 5K23:59
- Half marathon1:50:19
- Marathon3:50:01
Equivalent times use Riegel’s formula, which assumes a comparable level of training for each distance and holds best within roughly a threefold distance jump. Real race times also depend on terrain, heat and how specifically you have trained for the distance — a marathon prediction from a 5K result is optimistic without the endurance base behind it.