Target Heart Rate Calculator
Enter age to compute max heart rate and the 50-85% target heart rate zone (bpm).
Input Data
歲
Results
beats per minute
190bpm
beats per minute
95bpm
beats per minute
162bpm
At a glance:Max heart rate ≈ 220 − age; target zone = max × 50% to × 85%.
Formula
maxHr = 220 − age.
lowHr = round(maxHr × 0.5); highHr = round(maxHr × 0.85).
How to Use
- Enter your age.
- Get max heart rate and the 50-85% target zone instantly.
Case Studies
30 years old
maxHr = 190; zone = 95 to 162 bpm.
FAQ
Why 220 − age?
It is the most common simple estimate; a more precise alternative is 208 − 0.7×age, but 220−age remains the standard.
What does 50-85% mean?
It spans moderate to vigorous aerobic intensity; fat-burn is often 50-70%, cardio conditioning 70-85%.
Is there a more accurate formula?
Your personal max is best measured with a graded exercise test; formulas only estimate.
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References
Content reviewed by the Calculatorism editorial team. Results are for reference only; please refer to the relevant authorities for the official figures.