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Wednesday, March 11, 2026

Max Heart Rate (MHR) Calculator

📖 How to Use

Simply enter your age in the field above. The calculator uses the highly accurate Tanaka formula to estimate the maximum number of times your heart should beat per minute during high-intensity exercise.

Frequently Asked Questions
What is Max Heart Rate? +
Max Heart Rate is the highest number of beats per minute your heart can reach under maximum stress. It varies primarily based on age.
Why is the Tanaka formula used? +
While the old formula (220 - age) is popular, the Tanaka formula (208 - 0.7 x age) is scientifically proven to be more accurate for adults of all fitness levels.
What are heart rate zones? +
Zones are percentages of your Max HR. For example, the "Fat Burn Zone" is typically 60-70% of your maximum heart rate.
Should I always hit my Max HR? +
No, it is recommended to work out at 50-85% of your Max HR. Only competitive athletes usually train near 100%.
Does fitness level change Max HR? +
Actually, Max HR is mostly determined by age and genetics. However, fitness improves how efficiently your heart works at those rates.

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