VO2 max calculator
Estimate your VO2 max, the top longevity fitness marker, from two heart-rate numbers. Uses the heart-rate ratio method (Uth et al.): VO2 max ≈ 15 × (max HR ÷ resting HR). Rough by design; a lab test is the real thing.
Your estimate
45mL/kg/min
Good
Above average for the general population. Consistent aerobic training shows here.
Max heart rate estimated as 208 − 0.7 × age (180 bpm). A measured max from a hard effort is more accurate. Categories are rough adult-population bands; fitness standards vary by age and sex.
Why VO2 max matters
Cardiorespiratory fitness is one of the strongest predictors of longevity in the literature, outperforming most biomarkers. It responds to training at any age: zone 2 base building plus occasional high-intensity intervals.
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Educational estimate, not a medical measurement. Talk to your doctor before starting intense exercise.