142 g of peanuts is 1 cup. That is the whole answer: one US cup of peanuts weighs 142 g (spooned and levelled, King Arthur Baking), so 142 g divided by 142 g per cup is exactly 1 cup. All the figures on this page are approximate — peanuts is a natural product, and how it is measured moves the weight of a cup by a few grams — so when the recipe is delicate, verify with a kitchen scale. For everyday cooking, 1 cup is the number to use.

This page is the reverse of the usual conversion: most recipes list peanuts in cups and the cook wants grams, but here the recipe, the packet or the scale gives grams and the cook has only cup measures. That happens more often than people expect — imported recipes, nutrition labels, bulk packs and meal-prep plans all speak in grams, while American cup measures are what is actually in the drawer. The conversion is one division, 142 ÷ 142 = 1, and the table below runs the same division for the amounts that come up most often.

142 grams of peanuts in cups — conversion table

Grams Cups (approx.)
10 g 0.07 (1/8 cups)
25 g 0.18 cups
50 g 0.35 (1/3 cups)
75 g 0.53 (1/2 cups)
100 g 0.70 cups
125 g 0.88 (7/8 cups)
150 g 1.06 (1 cup)
200 g 1.41 cups
250 g 1.76 (1 3/4 cups)
300 g 2.11 (2 1/8 cups)
400 g 2.82 cups
500 g 3.52 (3 1/2 cups)

Read the table from left to right: find the grams you have, and the cups column tells you how much that is, approximately. A quarter of a cup is 36 g, half a cup is 71 g, and three quarters is 106 g. For amounts between the rows, divide the grams by 142: for example, 106 g is 0.75 (3/4 cups), and 213 g is 1.50 (1 1/2 cups). The same 142 g figure works in the other direction too — multiply cups by 142 to get grams — and the second table runs that calculation for the common cup fractions.

Cups Grams (approx.)
1/4 cup 36 g
1/3 cup 47 g
1/2 cup 71 g
2/3 cup 95 g
3/4 cup 106 g
1 cup 142 g
1 1/2 cups 213 g
2 cups 284 g

Scaling a spice blend for a market stall or a big batch

A rub or curry powder made in bulk from a recipe written in grams. Take the 71 g figure first: 71 g of peanuts is 0.50 (1/2 cups), because 71 divided by 142 is 0.50. In practice that means a recipe calling for 0.50 (1/2 cups) can be weighed out as 71 g and poured or spooned straight in, with no jug to wash. The habit to build is converting once, writing the cup figure on the recipe, and then cooking from the cups — the scale only comes out for the first batch, and after that the converted recipe is a cup recipe. If the amount is awkward, round to the nearest tablespoon: one tablespoon of peanuts weighs about 8.9 g, so a couple of spoonfuls either way covers most rounding gaps without anyone noticing in the finished dish.

A bakery that buys leavener by the kilo

A professional kitchen converting a bulk bag into cup measures for a daily bake. Take the 213 g figure first: 213 g of peanuts is 1.50 (1 1/2 cups), because 213 divided by 142 is 1.50. In practice that means a recipe calling for 1.50 (1 1/2 cups) can be weighed out as 213 g and poured or spooned straight in, with no jug to wash. The habit to build is converting once, writing the cup figure on the recipe, and then cooking from the cups — the scale only comes out for the first batch, and after that the converted recipe is a cup recipe. If the amount is awkward, round to the nearest tablespoon: one tablespoon of peanuts weighs about 8.9 g, so a couple of spoonfuls either way covers most rounding gaps without anyone noticing in the finished dish.

A preserving or pickling recipe written in grams

A spice mix where the exact balance keeps the flavour right across dozens of jars. Take the 284 g figure first: 284 g of peanuts is 2.00 (2 cups), because 284 divided by 142 is 2.00. In practice that means a recipe calling for 2.00 (2 cups) can be weighed out as 284 g and poured or spooned straight in, with no jug to wash. The habit to build is converting once, writing the cup figure on the recipe, and then cooking from the cups — the scale only comes out for the first batch, and after that the converted recipe is a cup recipe. If the amount is awkward, round to the nearest tablespoon: one tablespoon of peanuts weighs about 8.9 g, so a couple of spoonfuls either way covers most rounding gaps without anyone noticing in the finished dish.

No scale? How to get 142 g of peanuts with cups alone

The whole point of this page is the cook without a scale, so here is the method in full. Take a dry measuring cup for peanuts if it is a dry ingredient, or a liquid jug if it is poured, and fill it by spooning the ingredient in and levelling it with the back of a knife. One level cup is 142 g, which is exactly the amount this page is about — 142 g is 1 cup. For other amounts, work from the table below and from the tablespoon figure: one tablespoon of peanuts weighs about 8.9 g, so most quantities can be built from cups plus a spoonful or two, with no scale anywhere in sight.

That said, a scale is still the better tool when precision matters, and this page says so plainly. Cup measures are approximate because ingredients vary — moisture, grind, packing and temperature all move the weight of a cup by a few grams. For a weeknight dinner that variation is invisible. For a celebration cake, a loaf of bread or a batch of preserves, it is the difference between success and a quiet disappointment. Weigh the peanuts when the stakes are high; measure it in cups when they are not.

Peanuts in the kitchen

Shelled whole peanuts. Snacking, stir-fries, sauces and baking. And storage: Airtight container, cool and dry, up to 3 months.

Frequently asked questions

Can I use volume instead of weight for peanuts?

For a pinch or a teaspoon, volume is fine. For a whole cup or a bulk batch, weigh it: a cup of powder is the least reliable measure in the kitchen.

How many cups is 142 g of peanuts?

About 1 cup — 142 g divided by 142 g per cup. The figure is approximate, because fine powders compact differently depending on how they are spooned.

Would I ever really need a whole cup of peanuts?

In a home recipe, almost never — peanuts is used by the teaspoon. A full cup is a bulk-cooking quantity, for spice blends, restaurant batches or preserving, where grams are converted to cups for a large mixing bowl.

How should I measure peanuts for a normal recipe?

By weight or by spoon, never by the cup. One tablespoon of peanuts weighs about 8.9 g, which is the practical unit for everyday cooking.

Why is the spooned-and-levelled method important here?

Because scooping a powder straight from the jar compresses it and can add a quarter or more to the weight. Spoon the powder into the measure and level it with a straight edge.

Related conversions