Convert Peanut Butter from Ounces to Cup (US)

How many US cups is 1 ounce of peanut butter?

1 ounce of peanut butter (smooth peanut butter) is 0.11 US cups. 2 ounces of peanut butter is 0.22 US cups. 1/2 ounce of peanut butter is 0.06 US cups. 1/4 ounce (0.25 ounce) of peanut butter is 0.03 US cups. Use the converter below for any amount.

Peanut butter is roasted peanuts ground into a thick, oily paste, sold smooth or crunchy. One metric cup (250 ml) of peanut butter weighs around 268 grams or 9.45 ounces. It is used in cookies, brownies, no-bake bars, satay sauce, and as a spread for toast and sandwiches.

Peanut butter is sticky and clings to measuring cups, so scooping reliably is hard. Weighing in grams gives accurate amounts without the mess of scraping out a cup.

Also known as

  • smooth peanut butter
  • crunchy peanut butter
  • natural peanut butter

Butter is a dairy fat that creams with sugar to build structure and lift, while peanut butter is an oily paste that adds dense flavour. They are close in weight (227 g vs 268 g per cup), so weigh when swapping in cookies and bars; expect a nuttier, denser result from peanut butter. See what 1 ounce of butter is in US cups.

Peanuts are the whole form used for crunch and texture where peanut butter adds creaminess. A cup of peanuts (154 g) is much lighter than a cup of peanut butter (268 g); always swap by weight. See what 1 ounce of peanuts is in US cups.

Almond butter is the milder, slightly sweeter nut-butter sibling, a touch lighter per cup (256 g vs 268 g). It swaps 1:1 by volume for peanut butter in cookies, bars, and sauces, with a milder, less salty flavour. See what 1 ounce of almond butter is in US cups.

Sunflower seed butter is the nut-free stand-in, lighter per cup (250 g vs 268 g). It swaps 1:1 for peanut butter in school and allergy bakes, with an earthier, more savoury taste. See what 1 ounce of sunflower seed butter is in US cups.

Hulled tahini is a smooth sesame seed paste, lighter per cup (240 g vs 268 g) and far more savoury than peanut butter. Swap by weight when using it in dressings, halva, or bars where a nut-free, bitter-edged paste suits the recipe. See what 1 ounce of hulled tahini is in US cups.

Out of peanut butter? See peanut butter substitutes →

No scale? The tool below gives a good estimate, but for exact bakes a digital kitchen scale removes the guesswork.

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Peanut Butter Measurement Converter

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Result

0.11 Cup (US)

Common Peanut Butter Conversions

Here are the most common peanut butter conversions from ounces to cups (US).

OuncesCups (US)
1 oz0.11 cups (US)
2 oz0.22 cups (US)
3 oz0.33 cups (US)
4 oz0.44 cups (US)
5 oz0.55 cups (US)
6 oz0.66 cups (US)
8 oz0.88 cups (US)
10 oz1.1 cups (US)
12 oz1.32 cups (US)

Peanut Butter Conversion Chart

The conversion chart below gives a quick reference for converting peanut butter from Ounces to Cup (US) and other measurements.

ouncescup(US)cupgramstbsptsp
2.5 oz0.28 cup (US)0.26 cup70.9 g4.41 tbsp13.23 tsp
5 oz0.55 cup (US)0.53 cup141.8 g8.82 tbsp26.46 tsp
7.5 oz0.83 cup (US)0.79 cup212.7 g13.23 tbsp39.68 tsp
10 oz1.1 cup (US)1.06 cup283.6 g17.64 tbsp52.91 tsp

For the reverse conversion, see 1 US cup of peanut butter in ounces.

Frequently Asked Questions

What is 1 ounce of peanut butter in US cups?
1 ounce of peanut butter is 0.11 US cups. The ratio is fixed, so 2 ounces of peanut butter is 0.22 US cups and 0.5 ounces is 0.06 US cups. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the peanut butter converter
How many US cups is 1.5 ounces of peanut butter?
1.5 ounces of peanut butter is 0.17 US cups. The ratio is fixed, so 1 ounce of peanut butter is 0.11 US cups and 2 ounces is 0.22 US cups. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
What is 2 ounces of peanut butter in US cups?
2 ounces of peanut butter is 0.22 US cups. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 ounce of peanut butter is 0.11 US cups, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact US cups reading.
How many ounces of peanut butter is 0.11 US cups?
0.11 US cups of peanut butter is 1 ounce. The conversion works the same in reverse, so you can switch between US cups and ounces without changing the result. This helps when a recipe lists ounces but you would rather weigh or measure in US cups. The converter above and the chart below cover both directions for any amount.
Are peanut butter and smooth peanut butter the same thing?
Yes. Smooth peanut butter is another name for peanut butter, so they are the same ingredient and convert identically. 1 ounce of peanut butter is 0.11 US cups under either name, and 2 ounces is 0.22 US cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 oz peanut butter in US cups?
1/2 ounce of peanut butter is 0.06 US cups. The ratio is fixed, so 1 ounce of peanut butter is 0.11 US cups and 2 ounces is 0.22 US cups. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.
What is 1/4 oz peanut butter in US cups?
1/4 ounce (0.25 ounce) of peanut butter is 0.03 US cups. The ratio is fixed, so 1 ounce of peanut butter is 0.11 US cups and 2 ounces is 0.22 US cups. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.

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