Age Grading Calculator
Calculate your age-graded percentage for running, jumps and throws, and compare performances regardless of age
Enter your age and your performance: we work out your age-graded percentage.
Age factors approximate the WMA 2023 tables by piecewise-linear interpolation, for running as well as jumps and throws. Results may differ slightly from official WMA calculators built on the full factor tables. Throw grading assumes the standard age-group implement weight.
Your level
66.1 % over 10000m at age 45 · age factor 0.880
Same level at every age
Performance equivalent to 66.1 % by age · hover the curve
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How to use the Age Grading Calculator
Pick your event & gender
Select the running event (100m to Marathon) and your gender. The calculator uses separate WMA factor tables for men and women.
Enter your age & time
Type your age (5–100) and your finish time. Use formats like 45:00 for minutes:seconds or 2:00:35 for hours:minutes:seconds.
Read your age-graded %
Your result is shown as a percentage — 100% means you equalled the open-class world standard for your age and gender. See which level you belong to.
What is age grading?
Age grading is a WMA (World Masters Athletics) method that adjusts athletic performances for the athlete's age. It answers: 'If you were 30 years old, what time would you have run?' The percentage shows how close your performance is to the world standard for your age and gender.
The percentage compares your mark with the world standard for your age and sex: 100% would match that standard. Age factors are interpolated every five years from the WMA tables, so the result is an estimate, not an official value.
The age factors used here are approximations of the official WMA 2023/2025 tables. For an official value, consult certified WMA calculators.
Frequently Asked Questions
Age grading is a WMA (World Masters Athletics) method that adjusts athletic performances for the athlete's age. A high percentage means your performance is close to the world record for your age group and gender.
The formula is: percentage = (open-class world standard / age factor) / your time × 100. The age factor comes from official WMA tables and varies by event and athlete age. This calculator uses an approximation of those tables.
Using the WMA convention: ≥ 90% = world class, 80–90% = national level, 70–80% = regional level, 60–70% = local level, < 60% = recreational. Most regular runners score between 50% and 70%.
Physical capacity changes with age: it peaks around 25–30 and then gradually declines. Age grading lets a 60-year-old objectively compare their performance against a 25-year-old by accounting for age-related decline.
This calculator is an approximation of the WMA 2023/2025 tables, based on piecewise-linear interpolation of age factors. Results may slightly differ from official WMA calculators which use the full factor tables. For certified results, use the official calculator on the WMA website.