Health & Fitness
Maffetone Heart Rate Calculator
Calculate the Maffetone (MAF) 180-Formula aerobic training heart rate.
Preparing your result…
What this calculator does
Calculates Maffetone Heart Rate Calculator using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
MAF HR = 180 − age + adjustment
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • MAF coaching formula=180−age+selected adjustment: commonly −10,−5,0,+5 under the originator’s stated health/training categories. It is a suggested aerobic training ceiling under that method, not an age-predicted maximum HR.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • Show category definitions and author’s age exceptions; adjustments are not arbitrary clinical measurements. Do not describe the result as a tested lactate threshold or universally proven optimum. Formula is not intended for athletes aged≤16 in the stated adult form.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Age (years) | MAF aerobic heart rate |
|---|---|---|
| Worked example | 35 | 145 bpm |
| Half the amounts | 18 | 162 bpm |
| Double the amounts | 70 | 110 bpm |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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