Age-Graded Running Calculator

Find out your:

• Predicted Race Times
• WMA Age-Grade Score
• Ideal Training Zones
• Estimated VO2 Max

Knowing where your race performance ranks (for your age) and training at the right paces is the difference between inspired fitness building and spinning your wheels! This calculator estimates your VO2 Max from your race time and uses published exercise science to deliver precise training paces across five zones — Easy, Marathon, Threshold, Interval, and Repetition. For runners over 34, it also calculates your WMA age-grade score and open equivalent paces. Supports the Mile, 5K, 10K, Half Marathon, and Marathon.