What this calculator does
Brine strength works out salt needed to make a brine of a given strength, by weight of the water. Enter your own figures above and the answer updates as you type: nothing is fixed in the code, so the result reflects exactly the numbers you supply.
The formula this calculator evaluates is printed under the tool and explained below, so you can check the working by hand or reuse it in a spreadsheet.
The formula
Formulasalt mass = water mass × target strength %
The inputs explained
| Field | What to enter |
|---|---|
| Water volume (ml) | A number, measured in ml. Starts at 2500. |
| Target brine strength (%) | A number, measured in %. Starts at 5. |
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
How the answer changes with water volume
Every other input is held at the calculator’s starting values while water volume varies. Select any row to load that scenario into the calculator.