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Heart Rate Zones Calculator
Target heart rate zones for fat burn and cardio training.
yrs
bpm
Training Zones (Karvonen Method)
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Maximum Heart Rate (BPM)
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Warm Up (50-60%)
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Fat Burn (60-70%)
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Aerobic (70-80%)
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Anaerobic (80-90%)
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Maximum (90-100%)
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About This Calculator
The CalcWise Heart Rate Zones Calculator gives you instant, accurate results right in your browser. All calculations happen locally — we never store or transmit your data. Whether you're on desktop or mobile, this free tool is always available with no signup required.
Frequently Asked Questions
The simplest formula: 220 minus your age. A 30-year-old has a max HR of about 190 bpm.
The fat-burning zone is 60-70% of max heart rate. Higher zones burn more total calories.
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