We recommend rounding up on the measurements and we always recommend getting an extra gallon of paint just in case. What is the Square Footage of my Inground Swimming Pool ? Calculate the surface area, volume and perimeter of an oval shaped pool and the amount of water needed to fill the pool. Use the information below for an estimate of the total square feet of your swimming pool’s interior.This formula is approximate since pools most likely have many round corners and steps, but should work for determining the amount paint or tiles needed to finish a pool. Knowing the Square Footage of a swimming pool is very important when you need to paint it.Estimating the amount of Paint your project will require depends on the smoothness of the surface, the number of coats recommended for a particular coating and the total square feet of the area to be painted.Refer to the specific paint product you plan to use for details on whether a primer coat is needed, coverage per gallon and recommended number of coats. Knowing the Square Footage of a swimming pool is very important when you need to paint it. Watch our video on how to acid wash and paint a swimming pool. There may be some pool owners that don't know the square footage of their pool but most of them should know the volume of the pool. The most common pool filter types are cartridge filters, diatomaceous earth (DE) filters and sand filters. Use the hot tub to calculate the volume of a round container. Pool Resurfacing Pro is the premier pool resurfacing company on the east coast. Add them together and divide by 2. What is the Square Footage of my Inground Swimming Pool? If you can calculate pool volume from square footage and average depth of the pool then you can get a good estimate for square footage of the pool from pool volume and average depth. A pool filter cleans out the water of your pool as it passes through the system. Half of that is 5 feet. Let's do the tricky part first. Multiply the radius by itself. The diameter of the tub is 10 feet. For example, if you measure the radius as 5 feet, multiply 5 feet by 5 feet to arrive at 25 feet. In the example, 25 feet squared times 3.14 equals an area of 78.5 square feet. Measure the length and width of both sections and add the square footages (using step 1). (L x W) + (L x Avg Depth x 2) + (W x shallow depth) + (W x deep depth) = Total square footage of surface area of all the pool sides and bottom.To determine average depth in a pool where the bottom slopes: Measure the shallow end and measure the deep end. - Knowing the Square Footage of a swimming pool is very important when you need to paint it. How Many Solar Panels Do I Need To Heat My Pool? In the example, 5 feet times 5 feet equals 25 feet squared. The size of a pool filter is determined by its surface area, as measured in square feet. Squared (multiplied by itself) means 5 feet times 5 feet equals 25 square feet. If one section is 12-by-10-feet and the other is 12-by-10-feet the result will be 120 plus 120 square feet equals 240 square feet. All Rights Reserved.