Use the free Pool Volume Calculator on ToolVexa to estimate the volume of a rectangular pool in cubic feet and gallons.
How to Use
Enter the pool length, width and average depth in feet, then press Calculate.
Formula in Plain Words
Multiply length by width by average depth to get cubic feet, then multiply by 7.48052 to get US gallons.
Worked Example
For a pool 20 ft by 10 ft with an average depth of 5 ft, the volume is 1,000 cubic feet, or about 7,481 gallons.
FAQs
What is average depth?
For a sloped pool, add the shallow and deep depths and divide by two.
Does this work for round pools?
No. This version is for rectangular pools only.
Why do I need the volume?
Pool volume helps with chemical dosing, pump sizing and water heating estimates.