Size Gallons / Liters Perimeter Pool Area 11' x 28' 8,900 / 33,700 75' 319 SqFt 13' x 32' 11,600 / 43,900 86' 425 SqFt 14' x 36' 17,800 / 67,400 96' 525 SqFt 16' x 40' 21,500 / 81,400 107' 657 SqFt 18' x 42' 24,900 / 94,300 114' 770 SqFt