Fermented pickles run on brine, not dry salt — published guidance puts the typical range at 3 to 5 percent of the water’s weight, with cucumbers specifically ranging anywhere from 3 to 15 percent by variety and style. Our own recipes lean lighter: a 2 percent brine for a quicker, milder half-sour, up to the standard 3 percent for a classic full-sour jar. Enter your water amount below to get the exact salt weight.
Pickles Brine Calculator
Scale a fermentation brine to any jar size — a lighter 2% for a quick half-sour, the standard 3% for a classic full-sour.
Weighing salt is more reliable than measuring by spoon — salt crystals pack differently by brand. This is a starting point within the published range, not a substitute for a tested recipe; keep cucumbers and other vegetables fully submerged under the brine.
Frequently Asked Questions
How much salt for a quart of water?
At 3%, about 2 tablespoons (27g) per quart (roughly 946 ml); at 5%, about 3 tablespoons (45g). Enter 1,000 ml above and adjust the slider to see the figure for whatever strength your recipe calls for.
What’s the difference between a 2% and a 3% brine?
A 2% brine, like the one in our Half-Sour Pickles recipe, ferments faster and milder, meant to be refrigerated after just a few days. The standard 3% used in our classic fermented pickles recipe runs longer for a fuller, more shelf-stable sour.
Does cucumber size change the ratio?
No. The percentage is based on the water’s weight, not the cucumbers, so whole cucumbers, spears, and chips all use the same brine strength — size only affects how they pack into the jar and how long they take to cure through.
Can I use this ratio for other vegetables in brine, like carrots?
Yes, with adjustment — the wet-brine method covers most whole or cut vegetable ferments, though published percentages vary by vegetable (carrots are typically listed around 5%). Our general Salt & Brine Calculator covers the full range if you’re fermenting something other than cucumbers.
My pickles turned out soft — is weak brine the cause?
It’s one of several published causes, alongside unremoved surface scum, cucumbers not fully submerged, and the blossom end being left on. Our Why Are My Pickles Soft? guide covers the full list.
Sources: NCHFP, Dill Pickles · BC Centre for Disease Control · Illinois Extension, Fermenting
Related: How to Make Fermented Pickles · Half-Sour Pickles (NY Deli Style) · Why Are My Pickles Soft? · Fermentation Salt & Brine Calculator