How far is a 5k?

3 ounces short of 1 cup.

5k means 5,000 km , which is about 3 miles. 

About 3.1 miles.

5 kilometres of course.

Just know if you've gone 10, take half way back because you went too far

It's slightly more than 3 miles.

A 5K race is 5 kilometers (5000 meters); this is about 3.107 miles (Imperial measure).

5 thousand meters 

The k stands for the prefix kilo- that refers to thousands.
So, 5k means 5,000 metres, (about 3 miles or possibly 1 hour of walking) 

Five kilometres.  It's in the name.  The average person could walk it in an hour.  I can run it in about half an hour in good condition.

its between 4K and 6K ...buy he way troll what is the k meant to be , in 1,000 or kilometres or just the letter K !!! more like a few cents short of a dollar !!!

I’m pretty sure it’s 1k more than a 4K.

It is slightly longer than 5 kilometers.  ~3.1 miles.The starting line and finish areas are before and after the actual run.

5,000. duh. bruh get some skills. 

Around 3 miles i think

It is 5000 units away.

5k means 5*10^3