Pool Volume Calculator
Calculate the water volume of your swimming pool in gallons and liters.
About Pool Volume
Knowing your pool's exact volume is essential for proper chemical treatment, heater sizing, and pump selection. The calculation uses average depth (shallow end + deep end divided by 2) for sloped bottoms. One gallon of water weighs 8.34 pounds, so a 20,000-gallon pool holds over 83 tons of water. For chemical dosing, always test your water first and follow manufacturer guidelines. A standard garden hose delivers about 540 gallons per hour, so filling a large pool can take several days.