Salt Conversion Calculator

How it works

Salt crystals come in very different shapes. Fine table salt packs tightly, while Morton kosher salt has larger flakes and Diamond Crystal kosher salt has hollow, pyramid-shaped flakes that trap air. A teaspoon of Diamond Crystal therefore holds well under half the salt of a teaspoon of table salt, and swapping salts spoon for spoon changes how salty the dish is.

The calculator converts the recipe's amount to grams using the weight per teaspoon of the salt the recipe names, then divides by the weight per teaspoon of the salt you have. The two amounts contain the same weight of salt. The table shows that weight measured out in every salt on the list.

Weights per teaspoon come from the manufacturers' nutrition labels and conversion chart and from King Arthur Baking's ingredient weight chart. With Grams as the unit, the weight is used as entered and only the volumes are converted.

Formula

grams       = amount × teaspoons per unit × g per tsp of the recipe's salt
              (or the amount itself when the unit is grams)
teaspoons   = grams ÷ g per tsp of the salt you are using
tablespoons = teaspoons ÷ 3
g per tsp:  table 6;  Morton kosher 4.8;  Diamond Crystal kosher 8 ÷ 3 = 2.67;
            fine sea 6 × 48 ÷ 49 = 5.88;  coarse sea 6 × 48 ÷ 48.5 = 5.94;  pickling 6

Example

The default, 1 tablespoon of table salt, is 3 × 6 = 18 g of salt. In Morton kosher salt that is 18 ÷ 4.8 = 3.75 teaspoons (1.25 tablespoons, or 1 tablespoon + ¾ teaspoon, as Morton's conversion chart gives it). In Diamond Crystal kosher salt it is 18 ÷ 2.67 = 6.75 teaspoons, or 2.25 tablespoons.

A recipe calling for 2 teaspoons of Diamond Crystal kosher salt (5.3 g) needs 0.89 teaspoon of table salt or 1.11 teaspoons of Morton kosher salt.

Assumptions and limitations

• Equivalent means the same weight of salt. All of these salts are almost entirely sodium chloride, so equal weights are about equally salty.
• Weights per teaspoon are published figures: Morton product labels (table and canning and pickling salt 1.5 g per ¼ teaspoon, coarse kosher salt 1.2 g per ¼ teaspoon, retrieved October 2026), the Morton salt conversion chart (updated September 2026) for fine and coarse sea salt, and King Arthur Baking's ingredient weight chart (table salt 18 g and Diamond Crystal kosher salt 8 g per tablespoon). King Arthur's chart lists Morton kosher salt at 16 g per tablespoon, 11% more than Morton's own label figure of 14.4 g used here.
• Morton's chart states that its conversions apply when replacing one Morton product with another. Sea salts and pickling salts from other brands, and other kosher salts, can measure differently because crystal size varies.
• Morton's chart rounds small amounts to practical spoon measures, so its small-quantity rows differ slightly from a straight proportion; this calculator applies one ratio per salt, taken from the chart's one-cup row.
• Teaspoons, tablespoons and cups are US measures (1 tsp = 4.93 mL). Spoonfuls are level and lightly filled; packing or heaping changes the weight.
• The result is an estimate for seasoning. For pickling, curing and canning, the amounts in a tested recipe or official guidance govern, and a scale gives the most consistent results.

Frequently asked questions