Calculate chemical dosages, equipment sizing, water volume, and operating costs for your pool or spa — all for free. No signup, no guesswork.
Chemical dosage calculators, water balance tools, pH and alkalinity adjusters for crystal-clear pool water.
Pool cost estimators, sizing guides, pump and filter calculators, heater sizing, and deck area planners.
Hot tub cost calculators, chemical dosing, energy costs, cover sizing, and maintenance schedules.
Operating cost estimators, evaporation calculators, pump runtime, solar heating, winterization, and resurfacing tools.
Calculate the right amount of chemicals to add to your pool based on its volume and current water test results.
Calculate the exact volume of your swimming pool in gallons based on its shape and dimensions.
Calculate the exact amount of chlorine to add to your pool based on your current and desired free chlorine levels.
Estimate the total cost to install an inground or above-ground swimming pool based on size, material, and features.
Estimate the total cost of buying, installing, and operating a hot tub based on size, type, and features.
Calculate precise chemical dosages for your hot tub based on its volume and current water test results.
Estimate monthly and yearly electricity costs for running your hot tub based on usage, climate, and efficiency.
Estimate the total annual cost to operate your swimming pool including electricity, chemicals, water, and maintenance.