How Many Cups in a Pound of Peanut Butter?

There are about 1.7 cups in a pound of Peanut Butter. Peanut Butter weighs 270 g per cup (scooped), so a pound — 453.59 g — divides to 1.68 cups. Ground peanuts, usually with salt and a little oil. Sandwiches, cookies, sauces and satay. Every figure on this page is approximate, because a cup measures volume and the weight depends on how the ingredient settles and how it was measured; when the amount matters — a cake, a sauce that must set, a dough that must rise — weigh the Peanut Butter on a kitchen scale instead of trusting the cup. This page gives you the full table for a pound and beyond, worked examples from real recipes, the method behind the figure, and the mistakes that catch people out.

Why recipes ask for a pound of Peanut Butter

Peanut butter is sold by weight in jars, while recipes call for cups, so the conversion is the bridge between the jar label and the recipe. A pound jar holds only about one and two-thirds cups, because peanut butter is dense, so a recipe needing two cups calls for more than a one-pound jar.

How many cups in a pound of Peanut Butter?

A pound of Peanut Butter is about 1.7 cups (1.68 cups, to be exact). The table below covers a quarter of a pound up to ten pounds, so you can read off whatever your recipe or your bulk buy calls for without doing the division yourself. If your recipe lists Peanut Butter in grams, the same table works in reverse: find the grams and read across to the cups.

Amount	Cups	Grams	Tablespoons	Millilitres
0.25 lb	0.42	113	7	99
0.5 lb	0.84	227	13	199
0.75 lb	1.26	340	20	298
1 lb	1.68	454	27	397
2 lb	3.36	907	54	795
5 lb	8.40	2268	134	1987
10 lb	16.80	4536	269	3975

The tablespoons column is the useful one for small amounts: a pound of Peanut Butter is about 27 tablespoons, and a single tablespoon weighs about 16.9 g. Use the pounds to grams converter if your recipe lists a different weight, and the cups to grams converter if you need the figure for a single cup of peanut butter.

Worked examples

The examples below use real recipes, with the cups and the grams side by side so you can follow the maths in context. Each one also notes where the cup is good enough and where the scale earns its keep.

Peanut butter cookies for a bake sale

Peanut butter cookies for a bake sale need 1 cup of Peanut Butter — about 270 g — creamed with butter and sugar for about 36 cookies. One cup is about 270 g, and a pound of peanut butter is only about one and two-thirds cups, so a jar goes fast in a baking household.

A satay sauce for a stir-fry

A satay sauce for a stir-fry needs 3/4 cup of Peanut Butter — about 202 g — whisked with soy sauce, lime and chilli. Three-quarters of a cup is about 203 g; thin the sauce with warm water a spoonful at a time, since it seizes up before it loosens.

Energy balls for the week

Energy balls for the week need 1/2 cup of Peanut Butter — about 135 g — mixed with oats, honey and chocolate chips. Half a cup is about 135 g; chill the mixture for thirty minutes before rolling, or it sticks to your hands instead of forming balls.

How to measure it

Spoon Peanut Butter into a dry cup measure and level it off — never pack them down, and never scoop the cup through the bag. Whole nuts, halves and chopped pieces all measure differently in the same cup, because the pieces settle differently and the air gaps change. If a recipe says '1 cup chopped', chop first and then measure; if it says '1 cup, chopped', measure first and then chop. When it matters, weigh: 270 g of Peanut Butter is 270 g however you chop them.

How the figure was measured

The weight figure on this page comes from King Arthur Baking: Peanut Butter weighs 270 g per cup, measured scooped, and that figure carries high confidence in CookScale's 120-ingredient table. All weights are per US cup (236.6 ml), and every cup-based result on this page is approximate, because a cup measures volume while the weight depends on how the ingredient settles, how fresh it is, and how it was measured. When the amount matters — a cake, a sauce that must set, a dough that must rise — weigh the Peanut Butter on a kitchen scale instead of trusting the cup. Read more about this ingredient on the Peanut Butter hub, which covers its weight, its measures, its storage and its substitutes in one place.

Practical guidance

Nuts go rancid faster than almost anything else in the pantry because their oils are exposed to air. Cool cupboard; stir natural peanut butter before use. Stir natural peanut butter thoroughly before measuring; the oil sits on top and the bottom of the jar is dry and stiff. Buy smaller bags more often rather than one huge bag that sits open, and taste one before baking with an old bag: fresh nuts taste sweet and clean, stale ones taste like old oil.

Buying and storing a pound of Peanut Butter

A pound of nuts is the standard bag size, and the price per pound drops sharply in bulk bins and warehouse packs. Only buy the big bag if you have freezer space — nuts keep for a year in the freezer and for months in the fridge, but only weeks in a warm cupboard.

How the maths works

The conversion is a single division: one pound is 453.59 g, and one cup of Peanut Butter weighs 270 g, so 453.59 ÷ 270 = 1.68 cups. Going the other way, one cup of Peanut Butter weighs 270 g, which is 0.60 lb, and one tablespoon weighs about 16.9 g while one teaspoon weighs about 5.62 g. To get any number of cups, weigh that many times 270 g: two cups is 540 g, three cups is 810 g, and half a cup is 135 g. In volume terms, a pound of Peanut Butter is about 397 ml, since one US cup is 236.6 ml. Remember that the cup is a volume and the pound is a weight, so this maths only works because we know the density of Peanut Butter; the same pound of a different ingredient would be a different number of cups entirely.

Frequently asked questions

How many tablespoons are in a pound of Peanut Butter?

About 27 tablespoons. A pound of Peanut Butter is about 1.68 cups, and there are 16 tablespoons in a cup, so 1.68 × 16 is about 27. A single tablespoon weighs about 16.9 g.

Do whole and chopped Peanut Butter measure the same?

No. Chopped Peanut Butter pack tighter, so a cup of chopped pieces weighs more than a cup of whole ones. The 270 g per cup figure is for Peanut Butter spooned and levelled as sold — weigh them if the recipe is a cake where the amount matters, and chop after measuring if the recipe says '1 cup, chopped'.

How many cups are in an 8 oz bag of Peanut Butter?

About 0.84 cups. An 8 oz bag weighs 227 g, and at 270 g per cup that divides to 0.84 cups. A full pound bag is double that, about 1.68 cups.

How long does a pound of Peanut Butter keep?

Cool cupboard; stir natural peanut butter before use. In practice, a pound lasts a few weeks in a cupboard, months in the fridge and up to a year in the freezer. Taste one before baking with an old bag — fresh nuts taste sweet and clean, stale ones taste like old oil.

Does natural peanut butter weigh the same as regular peanut butter?

Very nearly — both sit at about 270 g per cup once stirred, so a pound of either is about 1.7 cups. The difference is texture: natural peanut butter separates and needs stirring, while regular peanut butter stays uniform from the jar.