Tools

Free running calculators

Work out your pace, predict a race time from a recent result, and find your heart rate zones. No sign-up.

Running pace calculator

Pace per km and per mile, speed, and the same pace over 5K, 10K, half and marathon.

Race time predictor

Predict your 5K, 10K, half marathon and marathon times from one recent race.

Heart rate zone calculator

Five training zones from your max and resting heart rate.

Your first plan takes two minutes.

Pick a goal, connect Apple Health, and your first week is ready.

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