Training for a marathon means training to run 26.2 miles. You may want to run other races, as well, many of which measured in kilometers. Read on to see what all those lengths mean in miles and kilometers:
*Marathon: 26.2 miles
*30K: 18.6 miles
*25K: 15.5 miles
*Half-marathon: 13.1 miles
*20K: 12.4 miles
*15K: 9.3 miles
*10K (or 10,000 meters): 6.2 miles
*5K (or 5,000 meters): 3.1 miles
*1,600 meters: 1 mile (4 times around a track)
*1,500 meters: .93 miles (3 3/4 times around a track)
*800 meters: 1/2 mile (2 times around a track)
*400 meters: 1/4 mile (1 time around a track)
*200 meters: 1/8 mile (1/2 time around a track)