Estimate your cost to raise Free Chlorine by 1 ppm for your pool volume.
| Product | $ per 1 ppm | $ for target ppm | Notes |
|---|
This calculator compares liquid chlorine products by estimating the cost to raise your pool’s Free Chlorine by 1 ppm. Enter your pool volume, the chlorine strength, container size, and price for each product. The tool converts each option into a common cost-per-ppm figure so the products can be compared fairly.
A cheaper jug is not always the better value. A stronger product may cost more per container but deliver more usable chlorine.
Container size and shelf price can hide the real cost of chlorination. Comparing cost per gallon alone ignores concentration. Cost per ppm shows what you are actually paying to raise FC in your specific pool.
This is especially useful when comparing household bleach, 10% pool chlorine, 12.5% commercial chlorine, and different container sizes.
Freshness and storage matter. Liquid chlorine loses strength with age, heat, and sunlight. A cheaper container that has been stored poorly may deliver less chlorine than the label claims.
Not always. Freshness, storage, availability, container handling, and product additives also matter.
Yes, as long as the bleach is plain, unscented, and free of splashless additives or thickeners.
A larger pool requires more product for the same FC increase, so the dollar cost per ppm rises with pool volume.
Only if you include those costs in the price you enter.
Fresh chlorine at a slightly higher price can be a better deal than old chlorine on clearance. The label percentage only helps if the product still has that strength.