How Much Is 8 Ounces of Peanut Butter in Cups?
8 ounces of peanut butter equals 0.88 cups. That's 226.80g, and Peanut butter has a density of 258g per cup. Because ounces measure weight and cups measure volume, the result depends on the ingredient's density.
Formula and Step-by-Step
- Start with 8 ounces of peanut butter
- Convert ounces to grams: 8 × 28.35 = 226.80g
- 1 cup of peanut butter = 258g
- 226.80g ÷ 258g/cup = 0.88 cups
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Spoon peanut butter into the measuring cup and pack gently to fill gaps. Do not scoop directly from the jar, which traps air.
Peanut Butter at Different Amounts
How peanut butter scales across common ounces measurements. Your amount (8 ounces) is highlighted.
Other Amounts of Peanut Butter
| Ounces | US Cups | Metric Cup | Imperial Cup |
|---|---|---|---|
| 1 ounce | 0.11 cups | 0.10 cups | 0.09 cups |
| 2 ounces | 0.22 cups | 0.21 cups | 0.18 cups |
| 3 ounces | 0.33 cups | 0.31 cups | 0.27 cups |
| 4 ounces | 0.44 cups | 0.42 cups | 0.37 cups |
| 5 ounces | 0.55 cups | 0.52 cups | 0.46 cups |
| 6 ounces | 0.66 cups | 0.62 cups | 0.55 cups |
| 8 ounces | 0.88 cups | 0.83 cups | 0.73 cups |
| 10 ounces | 1.10 cups | 1.04 cups | 0.91 cups |
| 12 ounces | 1.32 cups | 1.25 cups | 1.10 cups |
| 16 ounces | 1.76 cups | 1.66 cups | 1.46 cups |
Understanding the Units
What is an Ounce?
Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.
What is a Cup?
A cup is a US customary unit of volume equal to 236.588 milliliters or 8 fluid ounces. It is the most common volume measurement in American recipes. One cup can be divided into 16 tablespoons or 48 teaspoons.