Health

Heart Rate Zones Calculator

Find your 5 training zones for optimal exercise.

Age

Resting HR (bpm)

Max Heart Rate—

Zone 1 – Recovery (50–60%)—

Zone 2 – Fat Burn (60–70%)—

Zone 3 – Aerobic (70–80%)—

Zone 4 – Threshold (80–90%)—

Zone 5 – Max (90–100%)—

Karvonen: Target HR = ((MHR − RHR) × %Intensity) + RHR. MHR = 220 − Age.