VO2 Max Estimator

VO2 max (maximal oxygen uptake) is the maximum rate at which your body can consume oxygen during intense, exhaustive exercise. It is the gold standard measure of cardiorespiratory fitness and aerobic capacity, expressed in millilitres of oxygen per kilogram of body weight per minute (ml/kg/min). A higher VO2 max indicates a more efficient cardiovascular and muscular oxygen delivery system.

VO2 max declines with age and differs by sex. For men aged 30-39, a good score is around 43-48 ml/kg/min, excellent is above 52. For women aged 30-39, good is around 34-38 ml/kg/min, excellent is above 42. Elite endurance athletes (marathon runners, cyclists) typically have VO2 max values of 65-80+ ml/kg/min. Norwegian cross-country skier Oskar Svendsen holds a recorded value of 97.5 ml/kg/min.

The most effective methods for improving VO2 max are high-intensity interval training (HIIT) and sustained aerobic exercise. HIIT sessions · such as 4 × 4-minute intervals at 90-95% of maximum heart rate with 3-minute recovery · have strong research support for boosting VO2 max significantly in 6-12 weeks. Even moderate-intensity continuous training (e.g., 30-60 minutes of brisk running or cycling, 4-5 days per week) produces meaningful improvements in sedentary or recreationally active individuals.