Cycling heart rate zone calculator
Threshold heart rate is the better anchor. Max heart rate alone is coarser.
Worked example
Worked example: 156–173 bpm. Threshold. . Change the numbers and the result updates immediately.
How to use it
- If you know threshold heart rate, start there.
- If you only have a max, switch the menu. Age is an estimate, not a measurement.
- Sprints and very short efforts do not read well from heart rate.
From threshold: recovery to 68%, endurance to 83%, tempo to 94%, threshold to 105%, and VO₂max above that. From max heart rate the bands are wider; add resting heart rate and they start from heart-rate reserve. Above threshold, heart rate does not track the short zones.
Threshold: power and heart rate