Use A Calculator
All Calculators
All Calculators
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Target Heart Rate Calculator
Age
Resting Heart Rate
bpm
Formula
Karvonen (HRR)
Accounts for resting HR — most accurate for trained individuals
Haskell (220-age)
Simple and classic. Slight overestimate for older adults.
Tanaka (208-0.7×age)
More accurate than 220-age, especially for adults over 40.
Max Heart Rate Override (optional)
bpm
Calculate Zones
Find your cardio training zones using Karvonen, Haskell, or Tanaka formula.