Pool Chemical Dosing Calculator
Calculate the amount of chlorine or other chemicals to add to your swimming pool based on volume and desired concentration change.
Liquid Chlorine (12.5%)
4,992.0 fl oz
Liquid Chlorine (12.5%) vs Pool Volume
Pool Chlorine Dosing
Maintaining proper chlorine levels (1-3 ppm for residential pools) requires calculating the right dose based on pool volume and current levels.
Simplified Dosing
Liquid Chlorine (12.5% sodium hypochlorite): ~1.3 mL per gallon per 1 ppm increase
Granular Chlorine (65% calcium hypochlorite): ~0.24 grams per gallon per 1 ppm increase
Always add chemicals to water, never water to chemicals. Add in the evening when UV degradation is minimal.
Example Calculation
A 15,000-gallon pool needs chlorine raised from 1 to 3 ppm.
- 01PPM increase = 3 - 1 = 2 ppm
- 02Liquid chlorine = 15,000 x 2 x 0.0013 x 128 = 4,992 fl oz = ~39 fl oz
- 03Granular chlorine = 15,000 x 2 x 0.00024 x 16 = 115.2 oz = ~7.2 oz
Frequently Asked Questions
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