Heart Rate Calculator
Results
Maximum heart rate estimates can differ from your actual maximum heart rate. Use these values as general exercise guidance.
How to Use This Heart Rate Calculator
This Heart Rate Calculator estimates your maximum heart rate and can help you understand your heart rate during exercise. Enter your age or a measured maximum heart rate, and optionally enter your resting heart rate for additional results.
- Choose Estimate from age or Test result.
- If estimating from age, enter your age.
- If you have a measured result, enter your maximum heart rate test result.
- Optionally enter your resting heart rate in beats per minute (bpm).
- Choose a maximum heart rate estimation formula from the Settings section if you are estimating from age.
- Choose the activity intensity scale you want to use.
- Click the Calculate button.
- Your estimated maximum heart rate, resting heart rate, heart rate reserve, and training zones will appear in the results section.
Example
Age: 30 years
Resting Heart Rate: 70 bpm
Formula: Haskell & Fox (1971)
Estimated Maximum Heart Rate: 190 bpm
Heart Rate Reserve: 120 bpm
Understanding Your Maximum Heart Rate
Your maximum heart rate is an estimate of the highest number of times your heart may beat per minute during intense exercise. The calculator can estimate this value using your age or use a measured test result.
Different formulas can produce slightly different estimates. Your actual maximum heart rate can vary, so calculator results should be treated as general estimates rather than exact measurements.
Understanding Heart Rate Reserve
Heart Rate Reserve (HRR) is the difference between your maximum heart rate and resting heart rate.
Heart Rate Reserve = Maximum Heart Rate − Resting Heart Rate
For example, if your estimated maximum heart rate is 190 bpm and your resting heart rate is 70 bpm, your heart rate reserve is 120 bpm.
Maximum Heart Rate Formulas
| Formula | Calculation |
|---|---|
| Haskell & Fox (1971) | 220 − age |
| Tanaka, Monahan, & Seals (2001) | 208 − (0.7 × age) |
| Nes et al. (2013) | 211 − (0.64 × age) |
Heart Rate During Exercise
Heart rate zones can help you understand the approximate intensity of your exercise. Lower zones are generally associated with easier activity, while higher zones represent more intense exercise.
- Easy: Light exercise and warm-ups.
- Moderate: Comfortable but sustained exercise.
- Hard: More demanding exercise.
- Very Hard: High-intensity exercise.
Note: Maximum heart rate and training zones are estimates. Individual heart rates can vary considerably. This calculator is for general informational and fitness purposes and should not replace advice from a qualified healthcare professional. Stop exercising and seek appropriate medical advice if you experience concerning symptoms during exercise.
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