About PoolBalanceCalc

PoolBalanceCalc is a small, independent site with free pool chemistry calculators and plain-English guides for people who look after their own pools.

Why this site exists

Pool care advice is full of fixed rules: "keep chlorine at 1–3 ppm", "one bag of shock per 10,000 gallons", "so many ounces of acid per 0.2 pH". They work for some pools and fail for others, because the right dose depends on things like stabilizer and alkalinity. Much of what's online is also written to sell a particular product.

We built calculators that take those factors into account and show their working. Every tool displays its formula and worked examples, so you can check the result and understand what you're adding before it goes in the water.

Who's behind it

PoolBalanceCalc is an independent project run by a small editorial team. We aren't pool service professionals or chemists, and we don't pretend to be. Our job is to apply well-established chemistry and published guidance clearly, and to test that our calculators give correct results. For equipment installation, structural questions or public pools, consult a qualified professional and your local health department.

How the content is made

Our guides are researched and drafted with the help of AI writing tools, then checked by a person: formulas are verified, calculator outputs are tested against hand calculations, and claims are compared with sources such as the CDC, the US Department of Energy and equipment manufacturers' documentation. Full details are in our editorial policy.

How the site is funded

The site is free to use and may display advertising. In the future, some pages may contain affiliate links, which would be clearly labeled. Advertising and affiliate relationships never change a calculator's results.

Get in touch

Spotted an error or have an idea for a new calculator? Email us at [email protected] or use the contact page.