How big are most home swimming pools?

There are 6 standard size pools:

Avg. size Avg. Gallons (approximately)

12' x 24' 10,000

14' x 28' 13,000

15' x 30' 15,000

16' x 32' 17,500

18' x 36' 22,000

20' x 40' 27,000

width x length x average depth x 7.48= Gallons

Example: 15' x 30' x (3' x 6') divided by 2=4.5' x 7.48= 15,147 gallons