Running pace and race time calculator

Enter a recent performance — a race, a 5K time trial, any distance with its time — and get the pace you ran (min/km and min/mi), your average speed and equivalent times for 1 mile, 5K, 10K, half marathon and marathon using the Riegel formula.

The calculator also estimates your threshold pace (the one you could hold for an hour) and derives the five training pace zones from it: recovery, aerobic, tempo, threshold and intervals.

Also calculate your heart rate zones or try the demo with a real activity.

See the demo · Pricing · Blog