Here is a great tool to calculate the volume or capacity of your pool. Important!
Remember to measure from the depth of the water rather than the height of your wall. More complicated pool shapes will require multiple calculations and adding them together. For more detailed information on the calculations, read more below the calculator. For additional help, contact a swimming pool professional.
Capacity calculations involve calculating surface area and volume of the pool or spa. This article describes in detail how to calculate the size and capacity of the pool you are planning. Calculating a pool's area in square feet is the first step in determining information including pool gallons, maximum capacity of persons and other important information about your pool.