To properly sanitize and balance your pool water and to test water accurately, you will need to know how many gallons of water your pool holds. Water Capacity for . (Total Gallons)*. ABOVE GROUND POOLS . 11' x 18' Oval. 4,760. 12' x 24' . ABOVE GROUND POOLS : GALLONS. POOL SIZE, 48' WALL, 52' WALL. 18' Round, 7,600, 8,200 . 18' x 33' Oval, 14,000, 15,100. INGROUND POOLS. POOL . Swimmingpool.com pool volume calculator measures pool volume & geometric . Capacity calculations involve calculating surface area and volume of the pool or spa. . Length x width x average depth x 7.5 = volume (in gallons) . (A + B = 18 feet). . Inground Pools · Pool Types · Pool Features · Above Ground Pools . Intex 18' x 48' Metal Frame Above Ground Pool with Filter Pump. 18. 59.99. Intex 15' . The water capacity is 14,667 gallons, and it's ready for water in 90 minutes. An instructional DVD is included for help with pool setup. Intex 26' x 52' Ultra . Heritage Round 18 X 52 Deep Gold Above Ground Pool Package: there's a lot of hard work involved in leveling the ground and installing a pool such as this. Buy Intex 18' x 9' x 52' Ultra Frame Swimming Pool at Walmart.com. . This Intex pool will hold 4,545 gallons at 90-percent capacity. . Accessories Included:. Buy Intex 18' x 52' Ultra Frame Swimming Pool Set with Sand Pump & Saltwater . wall height and 18-foot diameter for a water capacity of 6,981 gallons at 90% full. . Instructional and maintenance DVD also included to help you get started . Our 18' x 52' Hampton round pool package is perfect for you! . dimensions (space required) - 19' Diameter; Approximate Water Capacity - 7,500 Gallons . Made in Canada; Installs above ground or semi-inground (installation not included). Intex 18' x 48' Ultra Frame Above Ground Pool And 1500 GPH Filter Pump 28329WL Water capacity: (90%) 6,981 gallons. 1) There is real work involved preparing the ground for a pool - please ensure you are self-educated here, it was .