United States calculator
Estimate pool water loss and refill cost
Use surface area, evaporation rate, cover reduction, days and local water price to estimate U.S. gallons lost.
pool water-loss column
Project inputs
Pool Evaporation Calculator results
How this Pool Evaporation Calculator works
Surface area times evaporation depth gives volume; cubic feet are converted to U.S. gallons.
Important: Wind, humidity, temperature, splash-out and leaks can dominate actual loss.
What assumptions should I verify?
Check every entered quantity, unit, rate and rule against the current U.S. source that applies to your project. The calculator does not silently substitute worldwide conventions.
Is information sent anywhere?
No. Calculations run locally in the browser and the module contains no analytics, remote requests or stored personal data.