Useful examples
- Enter 30:00 to understand a common recreational 5K benchmark.
- Enter 25:00 to compare a stronger club or parkrun-distance result.
- Run the calculator again for another age to compare the age-adjusted equivalent time.
5K calculator
5K Age-Grading Calculator
Use this 5K age-grading calculator to add age and gender context to a short road race, track-style time trial or parkrun-distance effort. The result shows pace, age-graded percentage and an age-adjusted equivalent time.
Age-graded calculator
Enter one race result
Results use sourced 2025 road-running age standards and are informational estimates, not official rankings.
Age-graded result
Raw finish time55:00
Pace per km11:00
Pace per mile17:42
Age-graded percentage28.1%
Age-adjusted equivalent45:35
A 57-year-old male running 5K in 55:00 is age-adjusted to approximately 45:35. That means the performance is comparable to an open-age runner completing 5K in about 45:35.
2025 road age standards from Alan Lytton Jones' Age-Grade-Tables project (CC0-1.0); exact age 57, age standard 15:28, open standard 12:49, factor 1.207.Uses CC0 road-running age standards. Results are informational age-graded estimates, not official WMA rankings. Source files: 2025 Files/MaleRoadStd2025.xlsx, 2025 Files/FemaleRoadStd2025.xlsx at commit 4aac6737cb9f216c90a0a610355667cd3d921c61.Read the methodology
Why 5K age grading is useful
The 5K is short enough that speed matters, but common enough that runners of very different ages often compare results directly. A 25-minute 5K at 30 and a 25-minute 5K at 65 are the same clock time, but not the same age-group performance.
This page is useful for parkrun-distance thinking, but TruePace Run is independent from parkrun and does not produce official parkrun results or rankings.
Good uses for this page
- Comparing a current 5K with an older personal best.
- Adding context to a club 5K or parkrun-distance effort.
- Understanding whether progress is visible even when raw times change slowly.
Keep learning
Compare the result with useful context
FAQ
5K calculator FAQs
Quick answers for using this distance-specific calculator sensibly.
Can I use this for a parkrun-distance result?
Yes, you can enter a 5K time to understand the age-graded context, but TruePace Run is independent from parkrun and does not produce official parkrun results.
Does the 5K calculator use exact standards?
For supported ages, the calculator uses the sourced 2025 road-running 5K standards directly rather than inventing a placeholder factor.
What should I compare after calculating?
Compare the age-adjusted equivalent time and percentage alongside the raw 5K time, especially when runners are in different age groups.