Target Heart Rate Calculator
Enter age and intensity to get your target heart rate zone.
Input Data
Age
Intensity
Results
Target heart rate in bpm.
133
Explanatory note about the result.
最大心率 = 220 − 30 = 190 bpm；目標(70%) = 133 bpm。
At a glance:Max HR ≈ 220 − age. Target HR = maxHR × intensity (Karvonen uses reserve, but here intensity is % of max). Zones: 50–60% light, 60–70% moderate, 70–85% hard. Complements vo2-max and running-calorie.
Formula
maxHR = 220 − age.
targetHR = maxHR × intensity.
How to Use
- Enter your age and target intensity %.
- The tool returns the target heart rate.
Case Studies
30 yr, 70%
maxHR = 190; target = 190 × 0.7 = 133 bpm.
FAQ
Karvonen vs simple %?
Karvonen uses heart-rate reserve (max−rest) for a more personalized zone; this uses % of max.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.