Heart Rate Zones

This heart rate zones calculator estimates training zones based on your age so you can see roughly what heart rate ranges match easy, moderate and hard effort. Heart rate zones divide your beats per minute into bands, from light activity up to maximum effort, and runners, cyclists and gym users use them to plan workouts such as easy aerobic runs or short hard intervals. Enter your age and the tool gives approximate bpm ranges for each zone. These figures are an educational estimate, not medical advice. Real maximum heart rate varies between people, and age based formulas can be off by a wide margin, so your own watch, fitness test or clinician may give different numbers. If you have a heart condition, take medication that affects heart rate, are pregnant or are starting a new exercise program, consult a doctor or qualified clinician before training by zones. The calculator runs entirely in your browser, needs no account, uploads no data and works offline once loaded.