MarocGym calculators

Heart Rate Calculator

Estimate training heart-rate zones using age and resting heart rate.

✓ Free tool✓ Your measurements are not stored.

Measure your pulse after sitting quietly for several minutes.

These are educational estimates and may vary with health, age and activity. Consult a qualified professional when needed.

How does it work?

Maximum heart rate is estimated with Tanaka (208 − 0.7 × age), then zones use heart-rate reserve via Karvonen.

Zones are estimates and may be affected by medication and health conditions.

Estimate maximum heart rate and training intensity zones based on age.