Target Heart Rate Calculator
Calculate your target heart rate for cardio exercise. Know exactly how hard to push.
Understanding Heart Rate Zones
Target HR = Resting HR + (HRR × intensity %)
The 5 Zones
- Zone 1 (50-60%): Recovery, warm-up
- Zone 2 (60-70%): Fat burning, endurance
- Zone 3 (70-80%): Aerobic fitness
- Zone 4 (80-90%): Lactate threshold
- Zone 5 (90-100%): Maximum effort
Frequently Asked Questions
What is target heart rate?
The ideal heart rate range for your workout intensity and fitness goals.
Why use resting heart rate?
Karvonen formula uses resting HR for more personalized, accurate zones than age-only formulas.