Is the 220-age formula accurate?

The 220-age formula has a standard deviation of plus or minus 12 bpm, meaning actual HRmax can vary widely. It tends to overestimate for younger people and underestimate for older people.

When should I use 220-age vs Tanaka?

The Tanaka formula is generally preferred for adults over 40. The 220-age formula is acceptable for quick estimates but the Tanaka formula is more evidence-based.

How do I find my true HRmax?

The most accurate method is a maximal exercise test supervised by a professional. A hard 3-5 minute effort at maximum intensity after thorough warm-up can reveal your true HRmax.

Maximum Heart Rate Fox Formula (220 - Age)

Classic maximum heart rate estimate using the Fox formula: HRmax = 220 - age. Simple and widely used in fitness testing.

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Frequently Asked Questions

Is the 220-age formula accurate?

When should I use 220-age vs Tanaka?

How do I find my true HRmax?