There are about 7.0 cups in a kilogram of peanuts. One cup of peanuts weighs about 142 g spooned and levelled, so 1,000 g divided by 142 g gives 7.0 cups — approximately, because a cup is a volume and this ingredient does not weigh the same in every cup. A kilogram of nuts is a familiar bag size — the bulk bag from the market or the warehouse store — and the cup question comes up the moment you start baking with it. Nuts are heavy for their volume compared with flour or oats, so a kilogram gives fewer cups than you might expect, and whether the nuts are whole, chopped or ground changes the count further. This page uses the whole-nut figure from the source table, and explains where chopping changes it.

That 7.0-cup figure is the one to remember, and it is worth knowing what sits behind it. Peanuts is used for snacking, stir-fries, sauces and baking, and in all of those jobs the recipe usually talks in cups while the shop sells by the kilogram. Shelled whole peanuts. The source for the cup weight is King Arthur Baking, with high confidence in the figure, and the method is spooned and levelled — spoon the ingredient into the cup and level it off, rather than scooping from the bag, which packs it down and adds weight. If you scoop, the same cup can hold noticeably more, and your 7.0-cup kilogram quietly becomes fewer cups than you counted on.

The conversion table

All figures below are computed from the same cup weight — one cup of peanuts is 142 g spooned and levelled — so the table is internally consistent. Grams are rounded to the nearest gram and cups to one decimal place; both are approximate.

Amount Cups Grams
100 g 0.7 cups 100 g
250 g (quarter kilogram) 1.8 cups 250 g
500 g (half kilogram) 3.5 cups 500 g
750 g 5.3 cups 750 g
1 kg 7.0 cups 1000 g
1.5 kg 10.6 cups 1500 g
2 kg 14.1 cups 2000 g
5 kg 35.2 cups 5000 g
Cups Grams
1/4 cups 36 g
1/2 cups 71 g
3/4 cups 106 g
1 cup 142 g
1.5 cups 213 g
2 cups 284 g
3 cups 426 g
4 cups 568 g
5 cups 710 g
8 cups 1136 g
10 cups 1420 g

A kilogram is also 2.20462 pounds, and a pound of peanuts is about 3.2 cups (454 g divided by 142 g per cup), so the kilogram figure of 7.0 cups is a little more than twice the pound figure. A tablespoon of peanuts weighs about 8.9 g and a teaspoon about 3.0 g, which is useful when a recipe calls for a spoonful rather than a cupful — though for spoon measures the scale is still the safer tool when the amount is small and the recipe is sensitive.

Worked example 1: buying a kilogram bag

Suppose you buy a 1 kg bag of peanuts for a big tray of baklava. The bag holds about 7.0 cups, and if each batch needs 2 cups — 284 g — the bag covers about 3.5 batches. In practice you will lose a little to spillage and to the last spoonfuls that cling to the bag, so plan on 4 full batches and treat the remainder as a bonus. This is the calculation that tells you whether the bulk bag is actually a bargain: divide the price of the bag by 3.5 and you have the cost per batch, which you can compare honestly with the smaller bag on the shelf.

Worked example 2: a recipe written in cups

Now take the recipe the other way round. You are making a double batch of banana bread and the recipe calls for 1 cup of peanuts. That is 142 g, so if your scale reads in grams you can weigh it directly and skip the cup entirely. If you are doubling the recipe, you need 2 cups, which is 284 g; tripled, it is 3 cups or 426 g. And if you only have the kilogram bag and no smaller measure, remember that 1 cup is about 14.2 percent of the bag — a useful sense-check when you are pouring from a large bag into a bowl and wondering whether you have taken too much.

Worked example 3: using up a half kilogram

A half kilogram — 500 g — of peanuts is about 3.5 cups. If you are a week's worth of granola, and each serving or batch takes 3 cups (426 g), a half-kilogram pack gives you about 1.2 of them. A quarter kilogram, 250 g, is about 1.8 cups, and 100 g — the smallest pack size you will commonly see — is about 0.7 cups. Working from the bag downwards like this stops the most common bulk-buy mistake: opening a kilogram bag for a recipe that needs a quarter of it, and then storing the rest badly because there was no plan for it.

Method and source

The cup weight used on this page is 142 g per cup, measured spooned and levelled, from King Arthur Baking. Confidence is rated high: the figure comes from a published ingredient weight chart and is widely used by bakers. The method matters as much as the number. Spooning and levelling means spooning the ingredient into the measuring cup until it is heaped, then sweeping a knife across the top; scooping the cup through the bag compresses the ingredient and can add 10 to 20 percent to the weight. For a poured ingredient the figure is for the ingredient poured into the cup without packing. Every cup result on this page is therefore labelled approximate, and the honest advice is to verify with a kitchen scale whenever the recipe matters — a scale that reads grams costs little and removes the whole problem.

Practical guidance

Nut oils turn rancid faster than almost anything else in the pantry, so a kilogram bag is a race against time once opened. Keep what you are using this month in an airtight jar in a cool cupboard and refrigerate or freeze the rest — frozen nuts keep for months and can be used straight from the freezer in baking. Taste a nut before you bake with it: a bitter, paint-like flavour means the oils have turned, and no recipe can rescue it.

Storage for a kilogram of peanuts deserves a sentence of its own: Airtight container, cool and dry, up to 3 months. A kilogram is a lot to store badly, so decant it into a sealed container as soon as the bag is opened, label it with the date, and keep the container where you will actually see it — ingredients hidden at the back of a cupboard are the ones that go stale unnoticed. If you buy in bulk to save money, the saving only survives if the second half of the bag is as fresh as the first when you reach it.

The most common mistake with kilogram-to-cup conversions is treating the cup as if it were a weight. It is not: a cup of water weighs 237 g, a cup of flour weighs 120 g, and a cup of shredded coconut weighs 85 g, all in the same cup. The cup measures volume, the kilogram measures weight, and the ingredient's density is the only bridge between them. That is why this site gives a different cup figure for every ingredient, and why a conversion you memorised for one ingredient will be wrong for the next. Keep the scale on the bench, use the cup figures as a planning tool, and weigh the ingredient when the recipe's success depends on the amount.

Frequently asked questions

How many cups are in 1 kg of peanuts?

There are about 7.0 cups in a kilogram of peanuts. One cup weighs about 142 g spooned and levelled, so 1,000 g divided by 142 g gives 7.0 cups. The figure is approximate: how you fill the cup changes the weight, so verify with a kitchen scale when it matters.

How many grams is 1 cup of peanuts?

One cup of peanuts weighs about 142 g, measured spooned and levelled, according to King Arthur Baking (high confidence). A tablespoon is about 8.9 g and a teaspoon about 3.0 g.

How many cups are in 500 g of peanuts?

There are about 3.5 cups in 500 g of peanuts — half the kilogram figure, since 500 g is half a kilogram. A quarter kilogram (250 g) is about 1.8 cups, and 100 g is about 0.7 cups.

Does chopping the nuts change how many cups are in a kilogram?

Yes. The figure here — about 7.0 cups per kilogram — is for whole peanuts as the source measured them. Chopped nuts pack tighter, so a kilogram of chopped peanuts fills fewer cups, and ground nuts fewer still. If your recipe calls for chopped nuts by the cup, weigh them instead: 100 g of chopped nuts is still 100 g, whatever the cup says.

How should I store a kilogram of peanuts?

Airtight container, cool and dry, up to 3 months. Keep the bulk of the bag sealed and decant a working amount into a smaller jar, so the main supply is opened as rarely as possible.

Is the cup figure exact, or should I weigh it?

It is approximate. The cup weight of 142 g is a published average for peanuts spooned and levelled, and real cups vary with brand, grind, humidity and how you fill the cup. For everyday cooking the cup figure is fine; for baking, for costing a recipe, or for any recipe where the amount is critical, weigh the ingredient on a kitchen scale and use the cup figure only to plan.

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