| Standard In-Ground Pool Volumes in US Gallons by Size | ||||
|---|---|---|---|---|
| Pool Size (in feet) | 3.5 ft Avg Depth | 4 ft Avg Depth | 4.5 ft Avg Depth | 5 ft Avg Depth |
| 12×24 | 7,600 | 8,600 | 9,700 | 10,800 |
| 14×28 | 10,300 | 11,800 | 13,200 | 14,700 |
| 15×30 | 11,800 | 13,500 | 15,200 | 16,900 |
| 16×32 | 13,400 | 15,400 | 17,300 | 19,200 |
| 18×36 | 17,000 | 19,400 | 21,900 | 24,300 |
| 19×38 | 19,000 | 21,700 | 24,400 | 27,100 |
| 20×40 | 21,000 | 24,000 | 27,000 | 30,000 |
| 22×44 | 25,400 | 29,000 | 32,700 | 36,300 |
| 25×45 | 29,531 | 33,750 | 37,968 | 42,187 |
| 25×50 | 32,800 | 37,500 | 42,200 | 46,900 |
| 30×50 | 39,375 | 45,000 | 50,525 | 56,250 |
| Above Ground Swimming Pool Water Volumes by Size US GALLONS | ||
|---|---|---|
| Size | 48in Wall* | 52in Wall* |
| 12ft Round | 2,975 gals | 3,398 gals |
| 15ft Round | 4,646 gals | 5,310 gals |
| 18ft Round | 7,646 gals | 8,602 gals |
| 21ft Round | 9,106 gals | 10,408 gals |
| 24ft Round | 11,895 gals | 13,594 gals |
| 27ft Round | 15,054 gals | 17,205 gals |
| 30ft Round | 18,585 gals | 21,240 gals |
| 33ft Round | 22,488 gals | 25,700 gals |
| 12x24ft Oval | 5,948 gals | 6,797 gals |
| 15x30ft Oval | 9,293 gals | 10,620 gals |
| 16x32ft Oval | 10,573 gals | 12,084 gals |
| 18x33ft Oval | 12,267 gals | 14,019 gals |
| * Assumes water depth is 6 inches less than wall height |
Why do you need to know you Pool’s Water Volume?
In order to figure out proper doses of chemicals for your pool, you need to accurately determine how many gallons of water it holds. To do that, you need to know four different numbers: the length, width, average depth, and a multiplier for your type of pool.