Calculator

Target Heart Rate Calculator

Calculate your maximum heart rate and training zones for fat burn, cardio, and peak performance.

Your Details

Age (years)

Resting Heart Rate (bpm, optional — for Karvonen zones)

Formula

Haskell (Recommended)

208 − 0.7 × age — Most accurate for adults

Tanaka

208 − 0.7 × age — Research-validated (same as Haskell, common name)

Fox (Classic)

220 − age — Traditional formula, widely known

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