Pool and hot tub calculators
Free calculators for the jobs pool owners repeat all season: finding your volume, dosing chlorine, and correcting alkalinity, calcium and stabilizer. Each one shows its formula and a worked example so you can check the math yourself.
CalculatorAlkalinity, calcium and stabilizerBaking soda, muriatic acid, calcium chloride and stabilizer amounts.CalculatorChlorine dose calculatorLiquid chlorine, bleach, cal-hypo, dichlor or trichlor, with side effects.CalculatorPool volume calculatorGallons from length, width and depth for rectangle, round and oval pools.CalculatorPool water logRecord readings on your device, spot trends, export a CSV.