Swimmingpool.com pool volume calculator measures pool volume & geometric formulas. This pool volume calculator works for circular and Kidney or Irregular Shapes. . Since there are 7.5 gallons in each cubic foot, multiply the cubic feet of the pool by 7.5 to . Use the hot tub to calculate the volume of a round container. Royal Swimming Pools Hot Tubs, Saunas, Games, and More Inground Rectangle Pools (add 2 rectangles together for a L-Shape pool). Please enter your measurements in . Oval Swimming Pools (also use for kidney and other free forms). Pentair Pool Volume Calculator - How many gallons of water does your pool hold? This pool volume calculator works for standard and irregular pool shapes. Also when adding a Pool Heater, Heat Pump or Solar Heater to your pool, you . For a 16x32 rectangle inground pool you would use 16 x 32 x 5 x 8 = 20,480 . Jun 25, 2011 - If you own a kidney-shaped swimming pool, you may wonder how to figure . kidney-shaped pool is: 30 x 15.5 x 4.5 x 7.0 = 14,647.5 gallons. Feb 9, 2018 - Find Fast a CHART or use our CALCULATOR. Above or In-Ground Formula for Oval, Round, Rectangle & Free Form swimming pools. Jun 23, 2012 - It can be tricky especially if you have an irregular shaped bottom, like what you may have with an oval or free-form shaped pool. But you can . Oval Pool. Long Diameter x Short Diameter x Avg. Depth x 5.9 = Gallons. calculating-pool- . The shallowest part of your swimming pool: feet. The shape of your . Mar 25, 2015 - The pool is kidney shaped with a small spa off one corner. . hot tub 6' diameter circle with a seat 16' below the water line that is 16' front to .