Size Gallons / Liters Perimeter Pool Area 12' x 24' 7,600 / 28,800 62' 257 SqFt 14' x 28' 10,500 / 39,700 72' 350 SqFt 16' x 32' 16,600 / 62,800 83' 457 SqFt 16' x 36' 17,900 / 67,800 90' 519 SqFt 18' x 36' 20,000 / 75,700 93' 578 SqFt 20' x 40' 26,000 / 98,400 103' 714 SqFt