5k is what in miles or what is 5k in miles ? 5k is a very popular race among hobby runners and is a step into marathon. 5k is 3.1 miles. Find out how to plan for a 5k race. Introduction Running is a great way to get in shape, and 5K races are a popular way to challenge yourself. How far is 5,000 meters or 5km? How many miles is a 5k. About 3.1…