There are about 3.47 cups in a kilogram of salt. That is the short answer, and it is the number this page is built around: one US cup of salt weighs 288 g spooned and levelled, according to King Arthur Baking, so 1,000 g divided by 288 g gives 3.47 cups. Every figure on this page is approximate, because cup weights shift a little with how the cup is filled, and when the result matters — a cake, a brine, a batch of jam — a kitchen scale is the only way to be exact.

Salt is fine-grained salt; the default seasoning salt. It is used for seasoning every dish and controlling yeast in bread. That is why the kilogram-to-cups question comes up so often: salt is sold by weight in most countries, while many recipes — especially American ones — measure it in cups. This page converts the whole kilogram, not just a single cup, so you can plan a whole bag or tub against a recipe instead of converting one spoonful at a time.

Conversion table: kilograms of salt to cups

One US cup is 236.6 ml, and one cup of salt weighs 288 g spooned and levelled. Every row below is that cup weight divided into the weight shown, so the whole table follows from a single number. Figures are rounded to two decimal places and labelled approximate.

Weight Cups (approx.)
100 g 0.35
250 g 0.87
500 g 1.74
750 g 2.6
1 kg (1,000 g) 3.47
1.5 kg (1,500 g) 5.21
2 kg (2,000 g) 6.94

The same cup weight works in the other direction too:

Measure Weight (approx.)
1 cup 288 g
1 tablespoon 18 g
1 teaspoon 6 g
1 kg in tablespoons about 56 tbsp

If you only need part of the kilogram, the table above is the fastest way to read it off. Half a kilogram is 1.74 cups, a quarter is 0.87 cups, and 100 g — a common recipe amount — is 0.35 cups.

How the figure is worked out

The calculation is a single division: 1,000 g ÷ 288 g per cup = 3.47 cups. The only input is the weight of one cup of salt, and that comes from King Arthur Baking, which lists one US cup of salt at 288 g, spooned and levelled. The confidence rating on that figure is high, which means it is a published, checked value rather than an estimate — but it is still a cup measurement, and cups are never as exact as grams.

One thing to know before you use the number: Fine table salt packs at 288 g per cup (18 g per tablespoon). Kosher salt is far lighter: Diamond Crystal is about 128 g per cup and Morton about 256 g - never swap them cup-for-cup.

Spooned and levelled means spooning salt loosely into the cup and sweeping the top flat with a knife, never scooping the cup through the bag. Scooping packs the ingredient down and can add 10–20% to the weight, which is exactly how a recipe ends up with too much of something and nobody knows why.

That is also why every number here carries the word approximate. A cup is a volume measure being used as a stand-in for weight, and the two only line up when the filling method matches the published one. If the dish is forgiving — a stew, a marinade, a crumble topping — the cup figure is plenty. If it is a cake, a loaf of bread, or anything where a 10% error changes the texture, weigh the ingredient on a kitchen scale and skip the cups entirely.

Worked examples

The table is useful, but recipes do not come in kilograms. Here are three ordinary situations where the kilogram-to-cups figure does real work.

Example 1 — a 1 kg bag lasts a very long time

A 1 kg bag of salt holds 3.47 cups, and most recipes use it by the teaspoon: one teaspoon weighs 6 g, so a single kilogram contains about 167 teaspoons. At two teaspoons per recipe, that is roughly 83 recipes from one bag — which is why spices are almost always bought in small jars and a kilogram is a bulk, catering quantity.

Example 2 — a brine or rub measured in cups

A curing brine or spice rub calls for ½ cup of salt, which is 144 g. From a 1 kg bag that is a small fraction — about 14% of the bag — leaving 2.97 cups behind. For brines especially, weigh the salt or spice rather than trusting a cup: a 10% error in a brine changes the salt concentration of the whole batch.

Example 3 — scaling a spice blend

A homemade spice blend uses ¼ cup of salt (72 g) per jar. Making four jars for gifts takes 1 cup, 288 g, which is 29% of a kilogram bag. If you are buying the kilogram bag specifically for blends, that tells you it will fill about 3 one-cup jars before it runs out.

Measuring it well, and storing what is left

The most common mistake with salt is treating all spoons alike. A heaped teaspoon can hold double a level one, and for a strong spice or for salt that difference is the whole dish. Always level a measuring spoon with the back of a knife. The second mistake is measuring over a steaming pot: the steam dampens the spice in the spoon and it clumps, so the spoon holds less than it should and the pot gets a damp, uneven dose. Measure away from the heat, then add.

Storage matters once you have opened a kilogram pack. Dry cupboard, indefinitely. A kilogram is a lot of salt for a home kitchen — for most households it will last weeks or months — so decanting it into a sealed container on the day you open it is worth doing: it keeps the weight stable, keeps moisture out, and means the cup you measure in a month weighs the same as the cup you measure today.

Without a scale, tablespoons are the fallback: one kilogram of salt is about 56 level tablespoons, and one cup is 16 tablespoons, so you can build any amount in the table above from spoonfuls. It is slower than weighing, and each spoonful adds its own small error, but for soups, marinades, and everyday cooking it is close enough. For baking, borrow or buy a scale — it is the single cheapest upgrade to a home baker's accuracy.

Buying it by the kilogram

Shops sell salt by weight, and the kilogram is the standard pack size in most countries outside the United States. Knowing that the pack holds about 3.47 cups lets you compare it honestly against smaller packs: a 500 g pack is 1.74 cups, so if the kilogram costs less than twice the 500 g price, it is the better buy — provided you will use it before it goes stale. For salt, seasoning every dish and controlling yeast in bread. Work out how many cups your household actually uses in a month before choosing the big pack; a bargain that ends up thrown away is not a bargain. And remember the figure is approximate: if the recipe on the packet is written in grams, follow the grams. Cups are a translation, not the original.

Frequently asked questions

How many cups are in 1 kg of salt?

About 3.47 cups. One cup of salt weighs 288 g spooned and levelled (King Arthur Baking), and 1,000 g ÷ 288 g = 3.47 cups. The figure is approximate, because how firmly the cup is filled changes the weight slightly.

How many cups are in 500 g of salt?

About 1.74 cups — half the kilogram figure. The same division applies: 500 g ÷ 288 g per cup = 1.74 cups. The conversion table near the top of the page lists 100 g, 250 g, 750 g, 1.5 kg, and 2 kg as well.

How many tablespoons are in 1 kg of salt?

About 56 level tablespoons. One tablespoon of salt weighs 18 g, so 1,000 g divided by that is 56 spoonfuls. Tablespoons are a workable fallback when there is no scale, but each spoonful adds a little error, so weigh when it matters.

Can I use the same cups-per-kilogram figure for other brands of salt?

Usually, yes, within a small margin. The cup weight of a standard ingredient is set by its density, which barely changes between brands. What does change it is the form — fine versus coarse, sifted versus settled, softened versus fridge-hard — so if a brand feels noticeably lighter or denser in the hand, weigh a cup of it once and use your own figure.

Why do different sources give different cup weights for salt?

Fine table salt packs at 288 g per cup (18 g per tablespoon). Kosher salt is far lighter: Diamond Crystal is about 128 g per cup and Morton about 256 g - never swap them cup-for-cup. This page uses the primary published figure and states it plainly, so you can adjust if your recipe book uses a different one.

Related conversions

More conversions for salt, and the tools that do this arithmetic for you: