A little more than half a lap on an outdoor track.
A standard high school track measures 400 meters per lap. A 5K race is 5,000 meters long, so to calculate the number of laps around the track, you would divide 5,000 by 400. This means that approximately 12.5 laps around the track equal a 5K.
3 and 3/4 around a 400 m track
A standard track lap is equal to 400 meters for an outdoor track and 200 meters for an indoor track.
Tracks may have varying dimensions. A typical high school track usually surrounds a football field, which requires a minimum length of almost 110 meters. If both turns are equal, each turn of a newer 400 meter track will thus be a maximum of 90 meters long.
The number of times around a track that equals 5000 meters depends on the length of the track. For a standard outdoor track, which is typically 400 meters in circumference, you would need to complete 12.5 laps to cover 5000 meters. If the track length is different, you would divide 5000 by the track's circumference to determine the number of laps needed.
A track is typically a designated area for running or athletics and is usually larger in size compared to a lap around a school. A standard outdoor track is 400 meters in circumference, while a lap around a school can vary significantly in distance depending on the school's layout. In most cases, a track is specifically designed to be longer than a lap around a school.
The track at Warinanco Park in Elizabeth, NJ is 400 meters long.
The 440 yard track at my old high school (Millikan HS, Long Beach, CA), has an inner grass oval of about 215 ft x 510 ft, and an outer dimension of about 300 ft x 595 ft. (I measured from Google Maps satellite view.)
The distance of a standard running track is typically 400 meters per lap. To calculate how many laps equal 21 kilometers, you convert 21 kilometers to meters, which is 21,000 meters. Dividing 21,000 meters by 400 meters per lap gives you 52.5 laps. Therefore, it would take 52 and a half laps around a standard track to equal 21 kilometers.
If you are in lane 1, then you must run 12 1/2 laps to equal 5k. The explanation for this is that a normal running track is 400 meters, therefore 12 1/2 laps would equal 5000 meters; i.e. 5K meters.
A 5K race is equivalent to 5 kilometers, which is equal to 5000 meters. Since a standard track is 400 meters long, you would need to complete 12.5 laps around the track to cover a distance of 5000 meters. Therefore, a 5K race would require you to run around the 400 m track 12.5 times.
That's only about three quarters of one straightaway