CALCULATE YOUR POOL VOLUME
There is a fairly simple formula to determine how many gallons of water your pool holds:
Length x Width x Avg. Depth x Multiplier= Gallons
Multipliers: Rectangle, Square, or Free-form: 7.5 multiplier
Round or Oval: 5.9 multiplier
Average Depth: To calculate the average depth simply find the depth of the shallow end and the depth of the deep end, add the two numbers, and divide by two.
Common Pool Volume Chart
| Pool Size | Avg. Depth @ 3.5' | Avg. Depth @ 4' | Avg. Depth @ 4.5' | Avg. Depth @ 5' | Avg. Depth @ 5.5' |
|---|---|---|---|---|---|
| 12' x 24' | 7,600 gal | 8,600 gal | 9,700 gal | 10,800 gal | 11,900 gal |
| 14' x 28' | 10,300 gal | 11,800 gal | 13,200 gal | 14,700 gal | 16,200 gal |
| 15' x 30' | 11,800 gal | 13,500 gal | 15,200 gal | 16,900 gal | 18,600 gal |
| 16' x 32' | 13,400 gal | 15,400 gal | 17,300 gal | 19,200 gal | 21,100 gal |
| 18' x 36' | 17,000 gal | 19,400 gal | 21,900 gal | 24,300 gal | 26,700 gal |
| 19' x 38' | 19,000 gal | 21,700 gal | 24,400 gal | 27,100 gal | 29,800 gal |
| 20' x 40' | 21,000 gal | 24,000 gal | 27,000 gal | 30,000 gal | 33,000 gal |
| 22' x 44' | 25,400 gal | 29,000 gal | 32,700 gal | 36,300 gal | 39,900 gal |
| 25' x 45' | 29,531 gal | 33,750 gal | 37,968 gal | 42,187 gal | 46,406 gal |
| 25' x 50' | 32,800 gal | 37,500 gal | 42,200 gal | 46,900 gal | 51,600 gal |
| 30' x 50' | 39,375 gal | 45,000 gal | 50,525 gal | 56,250 gal | 61,875 gal |
