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.
22 lengths
500 meters = 546.81 yards = 21.87 lengths of 25 yards each
500 yards is 20 laps
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.
66. 1650 yards is a mile. 500 is 20 laps. 100 is 40. 1650 is 66 ;)
I've never seen a 20 meter pool. just 25's and 50's. But, in a 20 it would be 250, in a 25 it is 200, and in a 50 it is 100.
A 10 kilometers race is equivalent to 20 laps if one lap is 500 meters.
4 laps a kilometer=1000 meters 2*1000=2000 meters/500=4
You have to swim 20 laps of the pool in a 500 yard race. One lap is considered one length of the pool, or 25 yards. In the 500, you are allowed a counter. The counter sits at the far end of the pool and shows you how many laps you have swum. The counter will show up to the number 17, then on the 19th lap, he or she will show a red sign.
334 laps/500 miles
Assuming laps means two lengths (there and back in a lane): 1yd = 0.9144m 20yd = 18.288m 2 lengths = 36.576m 1km = 1000m = 1000m / 36.576m ~= 27.34 laps (just over 54 2/3 lengths)
It would depend on the pool length, In Internationally sanctioned events the pool length is 50 meters. The USA is the only country that holds or has pools that are measured in yards, either 25 or 50. In a 25 yard pool.. 12 laps. In a 50 yard pool, 6 laps.