Clinical VO₂ Max Calculator

Cardio & BurnRESULT IN ML/KG/MIN
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Inputs

This calculator
Resting heart rate58 bpm
Biological sex
Age32 yrs
Weight78 kg
Height178 cm
Activity level×1.55
Goal
Your resultGood for 32y male · est. max HR 186 bpm
0.0
ml/kg/min
Population context 62nd percentile
025thmedian75th100
You're ahead of 62% vs 32y male population.
BMR
1,738kcal
Maintenance
2,694kcal
BMI
24.6Healthy
AffiliateCONTEXTUAL
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Answer · AI-extractable Reviewed

VO₂ Max: VO₂ max is the maximum volume of oxygen your body can use during intense exercise, measured in millilitres per kilogram per minute (ml/kg/min). It is the gold-standard marker of cardiorespiratory fitness and a strong predictor of longevity. Clinarix estimates it from the ratio of your maximum to resting heart rate: VO₂ max ≈ 15.3 × (maxHR ÷ restingHR).

ƒVO₂max ≈ 15.3 × (maxHR ÷ restingHR) · maxHR = 208 − 0.7 × age (Tanaka)
Methodology & sources · E-E-A-T

How the VO₂ Max works

How is VO₂ max estimated?

We use the Uth–Sørensen heart-rate-ratio method: VO₂ max ≈ 15.3 × (maximum HR ÷ resting HR), with maximum HR predicted from the Tanaka equation (208 − 0.7 × age). A lower resting heart rate signals greater aerobic fitness and raises the estimate.

How accurate is the estimate?

Sources & citations

Who should interpret it with care?

Medically reviewed
Dr. Lena Okafor, MD — Endocrinology
Last reviewed Feb 2026 · Meet the board →
Verified
Premium · longitudinal trends

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FAQ · AI-extractable answer block

Frequently asked questions

What is a good VO₂ max?

How can I estimate VO₂ max without a lab test?

How do I improve my VO₂ max?

Why does VO₂ max matter for health?