Age Grade Calculator
Compare a race time with the standard for your age and sex, on one scale from 0 to 100 %.
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This age grade calculator converts a race time into an age-graded percentage, which compares your time with the standard for your sex, age and distance. For example, a 5K in 0:24:00 by a man aged 45 gives an age grade of 58.52 %, and his age-graded time is 0:21:54. The percentages use the 2025 road age-grading tables of Alan Jones and USATF MLDR, not an official result from any governing body. Enter your sex, age, distance and time to see your percentage and level.
Enter the distance and your finish time and the page shows the level, the age-graded time, the time that would give the same grade at other ages and distances, and the times needed to reach 60, 70, 80 and 90 %.
How to use the age grade calculator
- Choose Women or Men.
- Enter your age, from 5 to 100.
- Choose the distance.
- Enter your finish time in h:mm:ss.
- Read the age-grade percentage and its level: at or above the age record standard (100 % and over), world class (90 %), national class (80 %), regional class (70 %), local class (60 %), or recreational below 60 %.
- Read the age-graded time, which is your time multiplied by the age factor shown. The page also gives equivalent times at other distances and ages.
- Read the time needed for 60, 70, 80 and 90 % age grade for your sex, age and distance.
- If the result is above 115 %, check the time and age you entered before you use the figure.
The age grades use the USATF MLDR / Alan Jones road age-grading tables (2025, CC0 data). Everything runs in your browser, nothing you enter is uploaded, and it is free.
Using the tables on the page. Below the percentage the page lists equivalent times for the same grade at other distances and at ages 20 to 80, so you can see what your performance would look like at another age. It also lists the times that give 60, 70, 80 and 90 % for your sex and age, which is useful for choosing a goal. Change the age or the distance and everything updates at once. The link button copies your exact inputs so you can send the result or open it later.
What is an age grade?
An age grade is a percentage. It compares your finish time with the standard for your sex, your age and the distance, so runners of different ages can compare results on one scale. The tables behind it are the USATF MLDR / Alan Jones road age-grading tables (2025).
What is a good age grade?
The levels are world class at 90 % and above, national class at 80 %, regional class at 70 % and local class at 60 %; 100 % and over is at or above the age record standard, and below 60 % is recreational. A woman aged 60 who runs a marathon in 3:30:00 gets 77.68 %, which is regional. A man aged 70 who runs a half marathon in 1:50:00 gets 71.59 %, also regional.
How is the age-graded time worked out?
The age-graded time is your time multiplied by an age factor. For a man aged 45 running a 5K in 0:24:00, the factor is 0.9125, which gives an age-graded time of 0:21:54. For a woman aged 45 running a 10K in 0:55:00, the factor is 0.9278, the age grade is 56.37 % and the age-graded time is 0:51:02.
What time do I need for 60, 70, 80 or 90 %?
For a man aged 45 at 5K, the times are 0:23:25, 0:20:04, 0:17:33 and 0:15:36. For a woman aged 45 at 5K, they are 0:25:31, 0:21:52, 0:19:08 and 0:17:01. For a man aged 50 at the half marathon, they are 1:48:12, 1:32:44, 1:21:09 and 1:12:08.
What do the standard and the open standard mean?
Two reference times sit behind every result. The standard is the time for your sex, age and distance that equals 100 %. The open standard is the same measure for the best age, so it is the faster of the two. For a man aged 45 running a 5K, the standard is 0:14:03 and the open standard is 0:12:49. The age factor is the open standard divided by the standard for your age, and multiplying your time by it gives the age-graded time. In that example the factor is 0.9125.
How does the same performance look at other ages?
Age grading lets you move one performance to another age. A man whose 5K of 0:24:00 at age 45 grades at 58.52 % would have run the equivalent of 0:21:54 at age 30 and 0:27:07 at age 60 for the same percentage. The percentage stays the same; only the time changes with the age factor.
Why the percentage depends on the tables
The percentage is only as good as the tables behind it. This calculator uses the 2025 road tables, so results can differ from an older set of factors, from a track table, or from a table another site uses. Use one table consistently when you compare yourself over time, and read a level as a rough band, not as an official ranking.
How this tool works and where the numbers come from
Age grade = the age and sex standard for the distance divided by your time, using the 2025 road age-grading tables of Alan Jones / USATF MLDR (CC0 data), ages 5 to 100, 15 road distances from 1 mile to 100 km. Distances between table columns are interpolated as the tables’ README describes. This is not an official result from any governing body.
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Frequently asked questions
What is my age grade?
Enter your sex, age, distance and time to get it. For example, a man aged 35 who runs a 5K in 0:25:00 has an age grade of 52.19 %, which is recreational.
Does the age graded running calculator work for a marathon?
Yes. A woman aged 60 who runs a marathon in 3:30:00 has an age grade of 77.68 %, which is regional, and the page shows the equivalent times at other distances.
What ages does the age grading calculator cover?
The calculator accepts ages from 5 to 100. Enter your age as it is on race day, since the factor depends on it.
What is the age grade for a 10K?
For a woman aged 45 who runs a 10K in 0:55:00, the age grade is 56.37 %, which is recreational.
Why does my age grade show over 115 %?
A result above 115 % usually means one of the inputs is wrong. Check the finish time, the distance and the age, then enter them again.
What age grade is good for a teenager?
The tables cover ages 5 to 100, so young runners are graded too. A girl aged 15 who runs a 5K in 0:22:00 gets an age grade of 66.98 %, which is local class, with a standard of 0:14:44 and an open standard of 0:13:54.
What is a good age grade for a half marathon at 70?
A man aged 70 who runs a half marathon in 1:50:00 gets 71.59 %, which is regional class. His standard is 1:18:45, his open standard is 0:57:31 and his age-graded time is 1:20:21.
Is this an official age grade?
No. It is computed from the published road tables and is not a result from any governing body. The percentage is a way to compare times across ages, not an official classification.
Related tools
- Average 5K time: Use this to see how a 5K time ranks among road-race finishers.
- Average 10K time: Use this to see how a 10K time ranks among road-race finishers.
- Average half marathon time: Use this to see how common each half marathon goal is.
- Race time predictor: Use this to predict a time at another distance.
- Training pace calculator: Use this to get training paces from a race result.
- Boston qualifying times: Use this to check a marathon time against the Boston standards.