If it's a rectangular pool it will be about 3.7 yards. If oval, a little less.
25 yards
No, you cannot convert a round pool into an oval pool. The measurements would be off and you would be unable to move the pieces of the round pool to form an oval.
About 109 yards.
500 yards is 20 laps
An Olympic sized pool is 50m
Due to the differences in engineering and the parts involved, there really is no way to convert an oval above ground pool into a round pool.
A short course pool is 25 yards/meters long. A long course pool is double that (50 yards)
20,500 gallons
4500 US Gallons
Most pools should be oval shaped. Oval shaped pools allow the swimmer to be able to swim laps and have a pool with greater depth.
If you use the formula for determining the circumference of a circle, C=pi*diameter, you can calculate the "ends" of the oval and then determine how long the sides of the oval need to be. For example, if the distance between the 2 long parallel sides of the oval is 20 yards, the circumference of a circle with the diameter of 20 yards is 63 yards (actually 62.8). If you dissect the circle and use one side for one end of the oval and the other side for the other end, you end can figure out how long the parallel sides would need to be. Calculate the length of the 2 sides, subtract 63 yards, the measurement of the 2 ends of the oval, from 220. This would be 157 yards. Then divide 157 by 2 to get the length of the 2 sides of the oval. This would be 78.5 yards. Therefore, the dimensions of this oval would be 20 yards wide by 98.5 yards.