How Far is a 50K?

A 50k is 31.07 miles.

It is 54680.7 yards, or 164042 feet, which is equivalent to over 546 football fields long.

For my fellow Utah people, it's about the distance from Provo to Salt Lake City.

Another comparison, it’s about the distance from San Francisco to San Jose.

I researched one study that says the average human travels around 1,182 miles a year, so a 50k would be about 10 days of an average human's travel on foot. This is for people that get around 7,000 steps a day.

But how far does a 50k feel?

Well, a lot of people never find out. DNF rates for 50ks can be crazy high depending on many factors. I found one race (the 2025 Barkley Fall Classic 50k) that had only 20 finishers, which is around a 5% finish rate.

But I mean thousands of people have done it, so it must be possible. It takes around 6-8 hours to finish a 50k. This is a while, but if you think about it, most people are at work for longer than this. And while yes you are exerting your body for that long, you’re most likely going pretty slow. But also, it is still running, and doing it for that long is brutal.

The thing is though, as long as it feels, your body can most likely handle it, as well as your mind. In my experience, once you’re going for a while, you just start to flow and you almost fall asleep, only to wake up and you’ve gone like 10 miles. As long as you don’t bonk, a 50k is light work. Especially when nature is surrounding you on every hand, then is when you become part of the land (rhyme not intentional).

To summarize, a 50k is long, 31.07 miles to be exact. But it’s also not that long.