Age Grade Calculator — Compare Across Ages
Calculate your age-graded performance percentage to compare results fairly across ages and genders.
Your age in years
Enter the gender
Distance measurement
Time in hours
Time in minutes
Time in seconds
How We Calculate This
Age Grading Formula
Age Grade % = (Age-Standard Time / Your Time) × 100
The age-standard time is the world record for your age and gender. Higher percentages indicate better performance relative to your age group.
Frequently Asked Questions
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5K Predictor
Predict your 5K time from shorter or longer race results.
Parkrun Predictor
Predict your parkrun time from other race distances.
Last updated: February 2026
All calculations are estimates. Always consult a coach or medical professional for personalised training advice.