How Far Is an 8K Race?

A group of runners in a cross country race.
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Road races are often measured in the number of kilometers rather than miles. An 8K run is 8 kilometers long, which is the equivalent of 4.97 miles. For most purposes, it is a 5-mile run.

The 8K or 5-mile distance is a standard one for road races, although it is not as common as the 5K (3.1 miles) or 10K (6.2 miles) distances. If you've recently started running, an 8K race is a good introduction to road racing, although most new runners like to start with a 5K (3.1 miles) as their first road race. If you've completed a 5K race, the 8K is a good next step. Learn more about this distance and how to train for it.

Finish Time for 8K Runs

Your typical pace can help you predict your finish time for an 8K run. You may need to add some time for warming up and getting through the crowd at the start of a race.

  • 5 minutes/mile: 25 minutes
  • 6 minutes/mile: 30 minutes
  • 7 minutes/mile: 35 minutes
  • 8 minutes/mile: 40 minutes
  • 9 minutes/mile: 45 minutes
  • 10 minutes/mile: 50 minutes
  • 11 minutes/mile: 55 minutes
  • 12 minutes/mile: 60 minutes

You can use the race time predictor at Runner's World to get a customized prediction of your finish time based on your past performance in other races. You can also use their age grade calculator to see how you might score for your age group.

If your goal is to win the race, check past performances for the event on their website and compare yourself to those winners. If your goal is to set a personal best, you will also have to research more about the course and event. How fast you may finish will also depend on course factors such as hills, altitude, weather conditions, and course crowding. 

8K Training Schedules

If you've found a local 8K or 5-mile race and you're interested in running it, here are some free 8K training programs:

The first eight-week training schedule is designed for beginner runners who want to get to the finish line of an 8K or 5-mile race. It assumes that you can already run at least 1 mile.

The eight-week schedule for advanced beginners is designed for runners who are a little beyond the total beginner stage and can run up to 2 miles at once. It's good for those who may have never run an 8K or 5-mile race before, but are looking for a schedule that's a little more challenging.

The six-week 8K training program is designed for intermediate runners who want to train for an 8K race. This schedule also works for any intermediate runners training for a 5-mile race. The program assumes that you can already run at least 4 miles.

This six-week 8K training program is designed for advanced runners who want to run a successful 8K race. This schedule also works for any advanced runners training for a 5-mile race. The program assumes that you can already run at least 6 miles.