🎽 Age Grade Calculator
Convert your race time into an age-grade score to benchmark against age-adjusted world-class standards.
Age on race day (years).
Use mm:ss for short distances.
Age Grade
77.4%
Regional Class
Standard Time
37:10
Age-adjusted elite benchmark
Open Equivalent
44:46
Equivalent performance at age 20
How to Use This Calculator
Select gender and age
Use your age on race day and select the matching gender category.
Choose race distance
Pick from 5 km, 10 km, half marathon, or marathon.
Enter your finish time
Use hh:mm:ss format to ensure accurate calculations.
Review age-grade score
Use the grade and classifications to benchmark progress.
Formula
Age Grade % = (Standard Time ÷ Your Time) × 100
Standard times originate from World Masters Athletics (WAVA) data. We interpolate between published five-year age blocks to approximate individual-age standards for each event.
Example
45-year-old female runs 10 km in 47:30. Standard = 40:55 → Grade = (40:55 ÷ 47:30) × 100 ≈ 86%. Equivalent open performance ≈ 41:40.
Variables
- Standard Time: Elite benchmark for age/sex
- Your Time: Finishing time in seconds
- Age Grade %: Benchmark score
Understanding Age Grading
Age grading lets you compare performances across ages, sexes, and distances on an even playing field. A higher percentage reflects stronger relative performance.
What the Grades Mean
- 90%+: World class, medal-level at major masters championships.
- 80–89%: National class; likely competitive at national championships.
- 70–79%: Regional class; strong club-level results.
- 60–69%: Competitive local runner with solid training base.
Use Cases
- Set performance goals independent of age by chasing higher percentages.
- Compare different distance results by converting everything to age grade.
- Monitor long-term progress as you age without relying solely on raw times.
Frequently Asked Questions
How accurate are these standards?
We use interpolated World Masters Athletics tables. For official scoring, consult the latest WMA/WAVA release.
Can I add my own distances?
This version covers popular road events. Future updates may include track distances or custom uploads.
Does a higher grade mean faster times?
Yes. Age grade reflects how close you are to age-adjusted world bests. Higher percentages indicate stronger performances.
What if my age is between table entries?
We linearly interpolate between five-year blocks to provide a smooth score across ages.
Can I compare different distances?
Yes. Use age-grade percentages to compare a 5k vs marathon performance on equal footing.