Compare equivalent doses between two liquid chlorine strengths.
This tool compares equivalent amounts of two liquid chlorine strengths. Enter the concentration of the product you have, the concentration you want to compare it with, and the amount of the original product. The converter calculates how much of the second strength would provide approximately the same available chlorine.
For example, one gallon of 10% liquid chlorine is not equal to one gallon of 12.5% chlorine. The stronger product delivers more available chlorine, so a smaller amount is needed to match the weaker product.
Liquid chlorine is sold in several strengths, including common household bleach and stronger pool-grade products. If you use the wrong percentage in a dose calculation, the pool may receive too little or too much chlorine.
Strength also declines over time. Heat, sunlight, age, and poor storage can weaken sodium hypochlorite. A container labeled 12.5% may no longer deliver its original strength after sitting in a hot shed or warehouse.
Use this tool when replacing one liquid-chlorine strength with another, comparing store prices, adjusting a dose from an older instruction, or checking how much weaker bleach is needed to match pool-grade chlorine.
It is a little more than twice as concentrated. The converter shows the equivalent amount so you do not have to estimate.
No. Higher-strength sodium hypochlorite often loses strength faster, especially when stored in heat or sunlight.
Plain, unscented bleach without splashless additives, fragrances, or thickeners can provide chlorine. Check the label carefully before use.
No. It only compares equivalent product amounts. Use the Chlorine Dose Calculator to determine how much chlorine your pool needs.
When comparing prices, calculate cost per equivalent chlorine strength—not cost per jug. The cheapest bottle is not always the cheapest chlorine.