๐ Household
Pool Chemical Calculator
Pool chemicals are dosed per 10,000 gallons of water, which is why knowing the volume exactly is the first step. Raising free chlorine by 1 ppm in 10,000 gallons takes about 2.2 fluid ounces of liquid chlorine.
How it works
Pool volume
Current free chlorine
Target free chlorine
Current pH
Target pH
Current total alkalinity
Target total alkalinity
Liquid chlorine to add
pH adjuster needed
pH adjustment direction
Baking soda to add
Dosing note
Frequently asked questions
How do I use the Pool Chemical Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.