Age Grade Calculator

Compare your race time to the age-and-gender standard.

Age-graded standard time

Your time

Age grade (%) 81.818

Formula: age grade = standard ÷ your time × 100

Step-by-step with your numbers:

1. Values used:

2. Age-graded standard time = 900

3. Your time = 1,100

5. Age grade = 81.818%

Did we solve your problem today?

Age grading levels the field by comparing your time to the world standard for your age and sex.

The math behind it

age grade = standard time ÷ your time × 100. Over 90% is world-class; 60% is local-class.

Standard 15:00 (900 s), you ran 18:20 (1100 s) → about 82%.

Where do standards come from?

Published age-grading tables (e.g. WMA) by distance, age and gender.