Which formula should I use?
Tanaka is popular today; Gulati if you prefer a women-specific equation.
Max Heart Rate Calculator
Compare three common age-based max heart rate estimates for training zone setup.
Age and formula
Pick a formula and enter age in years.
About this calculator
How to use Max Heart Rate Calculator, plus the formulas and logic behind the results.
Tool description
Maximum heart rate declines with age on average, but individual spread is wide. Formulas give a starting point—not your lab-tested max.
How to use
- Enter age.
- Select classic, Tanaka, or Gulati.
- Calculate estimated MHR in bpm.
- Use with zone calculators for training bands.
Formulas & reference
Classic: MHR = 220 − ageTanaka: MHR = 208 − 0.7×ageGulati: MHR = 206 − 0.88×age
Formula notes
- Classic: oldest rule of thumb
- Tanaka: meta-analysis based
- Gulati: developed in women
- ±10–15 bpm error is common
Calculation logic
Applies chosen linear age equation and returns rounded bpm estimate.
A supervised field test or lab test is the only way to know true max HR precisely.
Max Heart Rate Calculator FAQ
Common questions about this calculator and how to use the results.
I am fit—will MHR be higher?
Training rarely raises max HR much; genetics dominate.
Can MHR increase with age?
No—it typically falls slowly with age.
Use for HIIT?
Yes as a starting cap, but listen to breathing and recovery too.
Kids and teens?
Pediatric max HR formulas differ—this is for adults.
Medications?
Some drugs cap HR response—clinical clearance matters.