- Enter age.
- Measure resting pulse. Use a calm seated or lying measurement.
- Review estimated maximum heart rate.
- Compare moderate and vigorous zones.
- Stop exercise and seek help for concerning symptoms.
Daily Heart Rate Estimator
Estimate resting heart rate context and exercise heart-rate zones from age and measured resting pulse. The tool uses an age-predicted maximum heart rate and the heart-rate-reserve method to create moderate and vigorous training ranges.
Age-based maximum heart rate is only an estimate. Fitness, medications, temperature, stress, illness, and measurement method can change pulse response, so use symptoms and professional guidance alongside the numbers.
Daily inputs
years
bpm
Result
—
Calculated result
Estimated max heart rate—
Moderate zone—
Vigorous zone—
Estimated HRmax = 208 − 0.7 × age
Heart-rate reserve = HRmax − resting HR
Target HR = resting HR + reserve × intensity
Heart-rate reserve = HRmax − resting HR
Target HR = resting HR + reserve × intensity
What the result means
The result displays the entered resting pulse and estimates exercise zones using heart-rate reserve.
Medications and medical conditions can substantially alter heart-rate response.
Given: Age 35, resting heart rate 65 bpm.
Calculation: HRmax = 183.5; reserve = 118.5. Moderate zone = 124–148 bpm.
Result: Estimated moderate range about 124–148 bpm.
When should resting heart rate be measured?
Measure after several quiet minutes, ideally under similar conditions each day.
Why use heart-rate reserve?
It incorporates resting heart rate and can personalize intensity more than a percentage of maximum alone.
Are age formulas exact?
No. Individual maximum heart rate can differ meaningfully from the estimate.
Can medication affect the zones?
Yes. Beta blockers and other medications may change pulse response.
What symptoms require stopping exercise?
Chest pain, faintness, severe shortness of breath, or an unusual irregular heartbeat warrant stopping and seeking appropriate care.