Heart Rate Zones

Train With Precision.

Stop guessing during your cardio sessions. Calculate your optimal fat-burning and cardiovascular endurance zones based on your age and resting heart rate to maximize the efficiency of every workout.

Target Heart Rate Zones

Calculated using the Karvonen Formula.

Age (years)

Resting Heart Rate (BPM)

Max Heart Rate Formula

220 − age is the classic rule of thumb but can be off by ±10-12 bpm. Tanaka’s formula, derived from a larger modern study pool, tends to track measured max HR more closely — especially past age 40.

Disclaimer: This tool is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Your Training Zones

Fat Burn Zone (60-70%)
0 – 0 BPM

Best for building endurance and burning fat. Feels like a comfortable pace.

Cardio / Aerobic (70-80%)
0 – 0 BPM

Improves cardiovascular fitness and stamina. You will be breathing heavily.

Peak / Anaerobic (80-90%)
0 – 0 BPM

Maximum performance interval training. Can only be sustained for short bursts.

Estimated Max HR: 0 BPM