The marathon is a long-distance foot race with a distance of 42.195 kilometres (c. 26 mi 385 yd), [1] usually run as a road race, but the distance can be covered on trail routes. · All official marathons have to be this distance. Slightly more precisely, a marathon is: A half marathon is exactly half the distance of a marathon: 13.1 miles or 21.1 kilometres. But why is the marathon this very specific distance? · Learn how far a marathon is in miles and kilometers, how it compares to other distances, and why it's 26.2 miles long. Find out how to train for a marathon, how long it takes, and what factors affect your time. · How long is a marathon? Learn the exact 26.2 mile distance, training tips, and proven strategies to conquer 42.195km successfully. · How Long Is A Marathon? A marathon equals 26.2 miles. A marathon measures 26 miles 385 yards, or 42.195 kilometers. World Athletics set this exact course length in 1921, based on earlier Olympic courses, and keeps it as the global standard today (World Athletics, Boston Athletic Association). 6 days ago · The marathon is a long-distance footrace first held at the revival of the Olympic Games in Athens in 1896. In 1924 the Olympic marathon distance was standardized at 42,195 meters (26 miles 385 yards). · There are 26.2 miles in a marathon (or 42 kilometers). Learn how far a marathon is, the origins of the marathon race, and how you can start training.