1. What is Max Heart Rate?

Max Heart Rate (MHR) is the highest number of beats per minute your heart can achieve during maximum physical exertion. The most common formula to estimate it is 220 minus your age.

2. How Does the Calculator Work?

The calculator uses the simple Max Heart Rate equation:

Where:

• \( MHR \) — Maximum heart rate (beats per minute)
• \( age \) — Age in years

Explanation: This formula provides a rough estimate of your maximum safe heart rate based on age alone.

3. Importance of MHR Calculation

Details: Knowing your maximum heart rate helps determine appropriate exercise intensity levels and target heart rate zones for different training purposes.

4. Using the Calculator

Tips: Simply enter your age in years. The value must be valid (between 1-120 years).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the 220-age formula?
A: It's a general estimate with standard deviation of ±10-12 bpm. Individual variations exist based on fitness level and other factors.

Q2: Are there alternative formulas?
A: Yes, some suggest 208 - (0.7 × age) or 211 - (0.64 × age) may be more accurate for certain populations.

Q3: Why is knowing MHR important?
A: It helps establish safe exercise intensity ranges and target heart rate zones for different training goals.

Q4: Can MHR change with fitness level?
A: While the formula suggests MHR declines with age, your actual MHR is genetically determined and doesn't typically improve with training.

Q5: Should everyone use the same formula?
A: Some populations (elderly, highly trained athletes) may benefit from more specific formulas.