Free, no-sign-up calculators for pace, race times, VO2 max, and cycling power — built by the team behind ActivityStat.
Work out your pace, finish time, or distance — in min/km or min/mile.
RunningPredict your 5K, 10K, half, and marathon times from one recent race.
RunningEstimate your VO2 max from a race result, the Cooper test, or heart rate.
CyclingCalculate your cycling FTP and get your seven Coggan power zones in watts.
Curious how you compare? See the benchmarks →
Looking for guides too? Read the ActivityStat blog →