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.
- These figures use the US cup (240 ml). A metric cup is slightly larger at 250 ml, so it holds a little more. Use the metric cup converter →
- Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
More about measuring Peanut Butter
Related Peanut Butter Ingredients
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 our Almond Butter converter.
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 our Sunflower Seed Butter converter.
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 our Hulled Tahini converter.
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.
Weigh it exact, get a scalePeanut Butter Measurement Converter
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0.11 Cup (US)Peanut Butter Calculators & Baking Tools
Working with peanut butter? These tools handle the jobs a converter cannot.
- Pan Size Converter Rescale a recipe for a different cake tin size.
- Oven to Air Fryer Converter Match the temperature and time when you swap the oven for an air fryer, fan oven, or slow cooker.
- Recipe Scaler Scale any recipe up or down and keep every ingredient in ratio.
Common Peanut Butter Conversions
Here are the most common peanut butter conversions from ounces to cups (US).
| Ounces | Cups (US) |
|---|---|
| 1 oz | 0.11 cups (US) |
| 2 oz | 0.22 cups (US) |
| 3 oz | 0.33 cups (US) |
| 4 oz | 0.44 cups (US) |
| 5 oz | 0.55 cups (US) |
| 6 oz | 0.66 cups (US) |
| 8 oz | 0.88 cups (US) |
| 10 oz | 1.1 cups (US) |
| 12 oz | 1.32 cups (US) |
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 above 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 above cover both directions for any amount.
- 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 above for the common ones.