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Water treatment calculators
Eight focused calculators for hardness, softening, flow, product fit, efficiency and ownership cost.
Product Fit CheckerCheck a real product’s service flow and usable capacity against your sizing target.Buyer toolHardness ConverterConvert mg/L or ppm as CaCO₃ to grains per gallon and see the USGS hardness class.Water Softener SizeEstimate daily grain load and a practical planning capacity band.Whole-House Flow RateEstimate simultaneous fixture flow when you do not have a measured peak GPM.Regeneration IntervalEstimate days between regenerations from usable capacity and daily load.Salt CostTurn salt dose and regeneration interval into annual pounds, bags and cost.10-Year CostCompare upfront and recurring costs over a longer ownership window.Softener EfficiencyCalculate grains per pound, regeneration frequency and estimated annual salt demand.