Heart Rate Calculator
Calculate your target heart rate zones based on age. Shows fat burn, cardio, and peak training ranges.
years
bpm
Heart Rate Zones
—bpm (max HR)
Zone 1: Warm Up (50-60%)—
Zone 2: Fat Burn (60-70%)—
Zone 3: Cardio (70-80%)—
Zone 4: Hard (80-90%)—
Zone 5: Peak (90-100%)—
Max Heart Rate Formula
Max HR = 220 − Age. Target zones are percentages of max HR. Fat burning peaks in Zone 2 (60-70%).