Health & Fitness CalculatorsPrivate by design
Race Time Predictor
Enter a known race distance and time to predict your equivalent time at a different target distance.
How to use this tool
- 1Enter a distance and time you've actually raced or run hard.
- 2Enter your target race distance.
- 3See the predicted time.
Frequently asked questions
How accurate is this prediction?+
It works best for target distances reasonably close to your known one — predicting a marathon time from a 5K, for example, is much less reliable than predicting a 10K from a 5K.
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