It takes 10 laps in an 50m Olympic size swimming pool and 20 laps in a 25m long swimming pool. A lap = a length. It's confusing because on a track, a lap is an oval path around the track back to the starting point. A pool is a straight line vs an oval on a track so when you travel it's entire length, you've gone a lap.
It depends on which pool you swim in. If it is a 25m pool then it will take 20 laps to finish but if it is in a 50 meter pool, which is Olympic size, it will be 10 laps to do 500 meters.
500/15 = 33.333... laps
10 lengths in an olympic size pool
20
22 lengths
Olympic pools are 50m, so 10 laps.
500 yards is 20 laps
500 meters equals just less then 550 yards. 550 divided by 25 is 22. You would have to swim about 22 laps in a 25 yard pool to swim 500 meters.
Each lap in a pool is 25 meters. There are 1600 meters in a mile. 25m x 20 laps = 500 meters. You would need to swim 64 laps to make a mile. Therefore 20 laps is 0.31 miles.
500 meters = 546.81 yards = 21.87 lengths of 25 yards each
20 Laps
If you're in a 25m pool then 20 laps(there is one). If in a 50m pool then only 10 laps.