Which formula should I trust?

220 − age is the classic but is off by 10-12 bpm on average. The Tanaka formula (208 − 0.7 × age) tracks real measurements more closely.

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Max Heart Rate Calculator

Estimate maximum heart rate with the 220 − age formula (and the more accurate Tanaka version) so you can set training zones.

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Age

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Which formula should I trust?: 220 − age is the classic but is off by 10-12 bpm on average. The Tanaka formula (208 − 0.7 × age) tracks real measurements more closely.