Swimming Pool Chemistry & Volume Calculators
Eliminate guesswork when balancing swimming pool water. Every calculator below is calibrated against standardized aquatic chemistry formulas to calculate exact quantities of standard pool chemicals.
Pool Volume Calculator
Calculate precise gallons and liters for rectangular, round, oval, and freeform pools using shallow and deep depth measurements.
Pool Salt Calculator
Determine the exact number of 40-lb and 25-kg salt bags required for saltwater chlorine generators (SWG) to achieve 3,200 ppm.
Chlorine & SLAM Shock Calculator
Calculate liquid chlorine, bleach, cal-hypo, and dichlor dosages for daily sanitation and algae-eradicating SLAM shock treatments.
pH & Alkalinity Balancer
Calculate exact muriatic acid, sodium bisulfate, soda ash, and baking soda doses to stabilize pH between 7.4 and 7.6.
Calcium Hardness Calculator
Prevent plaster pitting and rough scaling by calculating exact calcium chloride additions based on pool finish type.
Cyanuric Acid (CYA / Stabilizer) Calculator
Prevent UV sunlight from destroying your chlorine. Calculate dry stabilizer additions or drain-refill ratios for chlorine lock.
Langelier Saturation Index (LSI) Calculator
Verify whether your pool water is corrosive, balanced, or scale-forming across temperatures using the standardized LSI saturation index.
Why Precise Chemical Dosing Is Essential
Maintaining balanced swimming pool water is a matter of chemical stoichiometry. When chemicals are dosed based on estimation rather than exact water volume calculations, pools experience two costly extremes: under-sanitization (leading to cloudy water, bacterial biofilm, and algae blooms) or over-chemicalization (causing eye burning, surface etching, and equipment failure).
At MyPoolLab, our calculators compute exact mass and volume additions based on chemical purity and pool capacity. Whether treating a 5,000-gallon above-ground pool or a 45,000-gallon residential facility, enter your test readings above to get started.