VO₂ Max Estimator
Estimate your VO2 max (maximal oxygen uptake) using the Rockport Walk, Cooper Run, 1.5-mile, or non-exercise method
Time to walk 1 mile
HR immediately after walk
mL/kg/min
VO₂ Max is the maximum rate of oxygen your body can use during intense exercise — a key indicator of cardiovascular fitness. Ratings are based on ACSM normative data by age and sex. These are field-test estimates, not lab measurements.
Continue Exploring
Other Health Tools you might like...
BMI & BMR Calculator
Calculate your Body Mass Index (BMI) and Basal Metabolic Rate (BMR) with health insights
Calorie & Macro Calculator
Estimate daily calorie needs and macronutrient distribution for your fitness goals
BMR Calculator
Calculate your Basal Metabolic Rate using Mifflin-St Jeor, Harris-Benedict, or Katch-McArdle, plus daily TDEE for any activity level
Body Fat Calculator
Calculate body fat percentage using the US Navy method — metric and imperial, with fat mass and lean mass breakdown
BAC Calculator (Blood Alcohol Content)
Estimate your blood alcohol content with the Widmark formula — based on weight, gender, drinks, and elapsed time
Pregnancy Due Date Calculator
Calculate your pregnancy due date with Naegele's rule — current week, trimester, and days remaining from LMP or conception
Conception Calculator
Estimate ovulation date, fertile window, and most likely conception window from your last menstrual period and cycle length
Sleep Cycle Calculator
Find the best time to wake up or go to sleep based on 90-minute sleep cycles to wake up refreshed