Calcometry
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Heart Rate Zone Calculator
Training zones from max HR ≈ 220 − age — a rough estimate for cardio planning.
Age
Max heart rate
185 bpm
Moderate zone: 111–130 bpm
- Vigorous zone
- 130–157 bpm
- Light zone
- 93–111 bpm
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Heart rate zones
Zones are percentages of estimated max heart rate. The 220 − age formula is approximate; use a clinician or fitness test for precision.
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