Salt Weight Calculator
Enter your brine volume and salt percentage to get the exact salt weight, plus the tablespoon equivalent for the salt you actually have on the shelf.
Results
- Tablespoon equivalent
- 1.67 tbsp (Table salt, 18 g/tbsp)
How the salt math works
Brine percentage is weight-based: salt grams = liters of brine x percentage x 10, assuming brine weighs about 1 g per ml like water. The tablespoon equivalents come from typical brand densities - about 18 g per tablespoon for table salt but only 8.4 g for Diamond Crystal kosher - so a spoon of the wrong salt can double or halve the salinity.
Working from a recipe percentage instead? The brine calculator handles water-weight and total-weight bases, and the gram to tablespoon calculator converts other ingredients by their real densities.
Frequently asked questions
Why does the salt type change the tablespoon number so much?
Kosher salts are made in large, airy flakes: a tablespoon of Diamond Crystal kosher weighs about 8.4 g while a tablespoon of table salt weighs about 18 g - more than twice as much. Recipes that specify tablespoons usually mean one particular brand, which is why weighing beats scooping.
Is the salt percentage by weight or by volume?
By weight. A 3% brine means 30 g of salt per liter of water, regardless of which salt you use. The tablespoon row is only a convenience for when you have no scale - measure level spoons, never heaped, and expect some drift between brands.
Can I swap fine sea salt for kosher salt?
By weight, yes - any pure salt works at the same gram amount. By volume the swap needs care: fine sea salt is dense like table salt, so it takes noticeably fewer spoons than flaky kosher to reach the same weight. Avoid salts with anti-caking additives in long ferments.