Brine Percentage Calculator
A salt brine is a solution of salt dissolved in water, used for preserving vegetables, fermenting foods, and improving the texture and flavour of meat before cooking. Brine percentage is the weight of salt as a proportion of the total solution weight (salt plus water). A 3.5% brine for pickle fermentation, for example, requires 35 grams of salt per 965 grams of water (totalling 1,000 grams). Salt concentration determines both the preservation effectiveness and the final flavour. Light brines (2% to 3%) are used for fermented vegetables such as sauerkraut and kimchi. Standard pickle brines are 3.5% to 5%. Meat brines are stronger at 6% to 8% and are applied for shorter times. This calculator works in two directions: forward (enter water volume and desired brine percentage, get salt weight) and reverse (enter water and salt weights, get brine percentage). Salt weight is shown in grams, and an approximate teaspoon equivalent is provided for reference using non-iodised table salt (approximately 5.7 grams per teaspoon).
Brine strength guide
| Brine % | Application | Salt per 1 litre water (g) |
|---|---|---|
| 2% | Light vegetable fermentation | 20.41 g |
| 3% | Sauerkraut, kimchi | 30.93 g |
| 3.5% | Light pickle brine | 36.27 g |
| 4.5% | Standard dill pickle brine | 47.12 g |
| 6% | Chicken brine (4 to 12 hours) | 63.83 g |
| 7% | Pork brine (2 to 8 hours) | 75.27 g |
| 8% | Turkey brine (12 to 24 hours) | 86.96 g |
Brine percentage: frequently asked questions
How is brine percentage calculated?
Brine percentage is calculated as the weight of salt divided by the total weight of the solution (water plus salt), multiplied by 100. For example, 35 grams of salt dissolved in 1000 grams (1 litre) of water gives a brine of 35 / (1000 + 35) * 100 = 3.38% brine. Some recipes use a simpler calculation based on salt per water weight only; this calculator uses the technically correct formula (salt / total weight).
What brine percentage should I use for pickles?
According to USDA guidelines, vegetable pickles use a brine that is at least 3.5% to 5% salt by weight, which is sufficient to lower pH and preserve the vegetables. Standard dill pickle brine is typically 3.5% to 4.5%. Fermented pickles (such as sauerkraut) use 2% to 3% salt based on vegetable weight, which creates a lower-sodium environment for lactic acid fermentation.
What brine strength should I use for brining meat?
A standard meat brine is 6% to 8% salt by weight. A 6% brine works well for chicken (4 to 12 hours), a 7% brine suits pork chops and roasts (2 to 8 hours), and an 8% brine is used for turkey (12 to 24 hours). Longer brining times require weaker brines to avoid over-salting. Always brine in the refrigerator for food safety.
Can I use the reverse calculation?
Yes, this calculator includes a reverse mode. Enter the amount of salt you have and the amount of water, and it will tell you what brine percentage that produces. This is useful when you want to use up a specific quantity of salt or when adapting a recipe that states salt in grams rather than as a brine percentage.
What type of salt should I use for brining?
Use non-iodised salt for brining and pickling. Iodised table salt can discolour pickles and inhibit fermentation. Kosher salt and pickling salt (fine non-iodised salt) are preferred. Note that different salts have different densities: a tablespoon of table salt weighs more than a tablespoon of Diamond Crystal kosher salt. Always measure by weight (grams) for accuracy.
References
- USDA Complete Guide to Home Canning (2015): National Center for Home Food Preservation.
- National Center for Home Food Preservation: Fermenting vegetables.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.