Millilitres of kosher salt to grams runs on one number, 1.0144207 grams per millilitre. It is a measured property of this ingredient rather than a defined conversion, which is why a generic volume-to-weight tool cannot give you it.
The density behind that figure is 1.0144 g per mL, against 1.00 for water. A cup of water weighs 236.6 g and a cup of kosher salt weighs 240 g, so this ingredient is 101.4% as heavy as the same volume of water — the single fact the whole page rests on.
Kosher salt has a density of 1.0144 g per mL, so 100 mL of it weighs 101.4 g and 250 mL weighs 253.6 g. That single figure is what every other number on this page is built from — water is 1.00 g per mL, so this ingredient is 101.4% as heavy as the same volume of water.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 0.417% of a cup of kosher salt, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 2.083 cups, and a 1 kg pack 4.167.
How the figure is arrived at: Flake size differs between brands by nearly a factor of two, which makes this the most variable figure on the site. Weigh it when it matters.
The formula
millilitres- The amount of kosher salt you are converting, in millilitres
1.01442068106- Grams per millilitre for kosher salt, from its density of 1.0144 g/mL
grams- The equivalent quantity in grams
How it works, step by step
- Enter the quantity in millilitres.
- It is multiplied by 1.01442068106, the grams-per-millilitre figure for kosher salt.
- The result appears in grams, with a second reading in oz beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
15 mL of kosher salt in grams
A recipe calling for 15 mL of kosher salt needs 15.2163 grams on the scale. The arithmetic is 15 × 1.0144207 = 15.21631, and halving the recipe halves the weight to 7.60816 grams.
100 mL of kosher salt in grams
A recipe calling for 100 mL of kosher salt needs 101.442 grams on the scale. The arithmetic is 100 × 1.0144207 = 101.44207, and halving the recipe halves the weight to 50.721 grams.
250 mL of kosher salt in grams
Take 250 mL of kosher salt: 250 × 1.0144207 gives 253.605 grams. Doubling the batch takes it to 507.21 grams, because the relationship is a straight proportion once the density is known.
How to read your score
Frequently asked questions
How many grams are in 1 mL of kosher salt?
One millilitre of kosher salt is 1.0144207 grams. Half that quantity is 0.50721 grams and double it is 2.02884 grams, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of kosher salt not 236 g like water?
Because weight per cup depends on what is in the cup. Kosher salt has a density of 1.0144 g per mL where water has 1.00, so a cup of it weighs 240 g rather than 236.6 g. That is a difference of 3.4 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Yes, and by more than most people expect. Handling changes the weight of a cup of kosher salt by roughly 20% — about 24 g either side of 240 g — because flake size differs between brands by nearly a factor of two, which makes this the most variable figure on the site. Weighing removes the question entirely.
Is a fluid ounce of kosher salt the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of kosher salt weighs 1.058 oz, so the two readings differ by 5.82%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of kosher salt would weigh 253.61 g instead of 240 g — 13.6 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
At this size the spoon wins. One millilitre of kosher salt is 1.014 g, and a scale reading to the nearest gram is working at 98.6% resolution on that — a measuring spoon is the more accurate instrument below about 5 g, which is why spice quantities are still written in spoons.
How many millilitres of kosher salt is 500 g?
500 g of kosher salt is 492.89 millilitres — 0.985784 millilitres to one gram, so 500 × 0.985784 = 492.89. Going that way is a division by 1.01442, or a multiplication by 0.985784 if you prefer.
Kosher salt in millilitres and grams
| Millilitres | Grams | Unrounded |
|---|---|---|
| 5 mL | 5.0721 g | 5.072103405 |
| 10 mL | 10.1442 g | 10.14420681 |
| 15 mL | 15.2163 g | 15.21631022 |
| 30 mL | 30.4326 g | 30.43262043 |
| 50 mL | 50.721 g | 50.72103405 |
| 100 mL | 101.442 g | 101.4420681 |
| 125 mL | 126.803 g | 126.8025851 |
| 150 mL | 152.163 g | 152.1631022 |
| 200 mL | 202.884 g | 202.8841362 |
| 250 mL | 253.605 g | 253.6051703 |
| 500 mL | 507.21 g | 507.2103405 |
Based on 240 g per cup of kosher salt. One millilitre of kosher salt is 1.0144207 grams.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 240 g | 8.47 oz | 236.6 mL |
| 1 tbsp | 15 g | 0.529 oz | 14.79 mL |
| 2 tsp | 10 g | 0.353 oz | 9.858 mL |
| 1 tsp | 5 g | 0.176 oz | 4.929 mL |
| 3/4 tsp | 3.75 g | 0.132 oz | 3.697 mL |
| 1/2 tsp | 2.5 g | 0.0882 oz | 2.464 mL |
| 1/4 tsp | 1.25 g | 0.0441 oz | 1.232 mL |
| 1/8 tsp | 0.625 g | 0.022 oz | 0.6161 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Ground turmeric | 144 g | 5.079 oz | 0.6087 |
| Powdered gelatin | 150 g | 5.291 oz | 0.634 |
| Baking powder | 192 g | 6.773 oz | 0.8115 |
| Vanilla extract | 202 g | 7.125 oz | 0.8538 |
| Kosher salt (this page) | 240 g | 8.466 oz | 1.014 |
| Table salt | 288 g | 10.16 oz | 1.217 |
| Baking soda | 288 g | 10.16 oz | 1.217 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.