What This Calculator Estimates
This calculator estimates your maximum heart rate using age and then suggests a moderate training zone based on that estimate. It is commonly used for basic cardio planning and exercise pacing.
Formula / Method Used
The calculator uses the widely known formula 220 - age to estimate maximum heart rate in beats per minute. It then multiplies that estimate by 64% and 76% to show the moderate-intensity heart rate zone.
Worked Example
At age 35, the simple formula estimates a maximum heart rate of 185 bpm. The calculator then estimates a moderate training zone at roughly 118 to 141 bpm, which can help guide steady-state exercise intensity.
What the Result Means
The max heart rate figure is a rough planning number, not a measured physiological limit. The training zone can help structure cardio workouts, but your actual safe and effective range may differ depending on fitness history, medications, health conditions, and exercise mode.
Common Mistakes
- Assuming the formula is exact for every person.
- Using heart rate targets without considering medications or medical history.
- Confusing a moderate zone with a hard-effort interval zone.
- Trying to test true max heart rate without appropriate supervision.
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Frequently Asked Questions
What does the Max Heart Rate Calculator estimate?
It estimates maximum heart rate from age using the simple 220 minus age formula.
Does the calculator also show a training zone?
Yes. It uses the estimated maximum heart rate to show a moderate-intensity heart rate range.
Is 220 minus age accurate for everyone?
No. It is a common estimate, but individual maximum heart rate can vary meaningfully from the formula.
Should I use this result for medical decisions?
No. It is a general planning tool and not a substitute for medical evaluation or supervised exercise testing.
When should I recalculate max heart rate?
Recalculate when your age changes enough to matter for your training plan or when you want to refresh your target zones.
General Disclaimer
This calculator is for general fitness planning only. It is not medical advice, and heart rate targets should be reviewed carefully if you have cardiovascular symptoms, pregnancy, chronic illness, or medication that affects pulse response.
Last updated: May 23, 2026