Vo2 Calculator

How to Use the VO2 Max Calculator

This calculator estimates your aerobic fitness (VO2 max in ml/kg/min) using two validated field tests. Choose the test that fits your ability.

Rockport 1-Mile Walk Test (for beginners or walkers)

1. Prepare: Find a flat, measured 1-mile course. You'll need a stopwatch and a heart rate monitor (or take your pulse manually).
2. Walk: Walk the mile as briskly as possible. Record your walk time in minutes (e.g., 15.5 for 15 min 30 sec).
3. Measure heart rate: Immediately after finishing, take your pulse for 15 seconds and multiply by 4 to get bpm.
4. Enter data: Fill in Gender, Weight (lbs), Age, Walk Time, and Heart Rate. All fields are required.
5. Calculate: Click the "Calculate VO2 Max (Rockport)" button.

Cooper 12-Minute Run Test (for runners)

1. Prepare: Find a track or measured route. Run as far as possible in exactly 12 minutes.
2. Measure distance: Record the total distance covered in meters (e.g., 2400 m).
3. Enter data: Input the distance in the Distance Run in 12 min field.
4. Calculate: Click the "Calculate VO2 Max (Cooper)" button.

Understanding Your Results

• VO2 Max value is shown in ml/kg/min. Higher numbers indicate better aerobic fitness.
• Fitness Level categories: Below Average (<30), Average (30-39), Good (40-49), Excellent (50-59), Superior (60+).
• The formula used is displayed for reference.

Note: Weight must be in pounds (lbs). For best accuracy, perform the test in consistent conditions (same time of day, proper warm-up). These are estimates, not clinical measurements.