A "k" in distance usually refers to a kilometer, which is a metric unit of length equal to 1,000 meters. One kilometer is approximately 0.621 miles

. For example:

• A 5K race means 5 kilometers, which is about 3.1 miles

• To convert kilometers to miles, multiply the number of kilometers by about 0.621. Conversely, to convert miles to kilometers, multiply miles by about 1.609

So, if you are asking "how far is a k," it means how far is 1 kilometer, which is roughly 0.62 miles or 3,281 feet