How Much Is 1 Cup of Peanut Butter in Pounds?
1 cup of peanut butter weighs 0.57 lb. This is based on peanut butter having a density of 258g per cup. Because cups measure volume and pounds measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 1 cup.
Formula and Step-by-Step
- Start with 1 cup of peanut butter
- 1 cup of peanut butter = 258g
- 1 × 258 = 258g
- Convert grams to pounds: 258 ÷ 453.592 = 0.57 lb
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 cups measurements. Your amount (1 cup) is highlighted.
For reference, 1 cup of peanut butter (258g) is close in weight to a cup of water (237g).
Other Amounts of Peanut Butter
| Cups | US Pounds | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 0.14 lb | 0.15 lb | 0.17 lb |
| 0.33 cups | 0.19 lb | 0.20 lb | 0.23 lb |
| 0.5 cups | 0.28 lb | 0.30 lb | 0.34 lb |
| 0.75 cups | 0.43 lb | 0.45 lb | 0.51 lb |
| 1 cup | 0.57 lb | 0.60 lb | 0.68 lb |
| 1.5 cups | 0.85 lb | 0.90 lb | 1.02 lb |
| 2 cups | 1.14 lb | 1.20 lb | 1.37 lb |
| 3 cups | 1.71 lb | 1.80 lb | 2.05 lb |
| 4 cups | 2.28 lb | 2.40 lb | 2.73 lb |
| 5 cups | 2.84 lb | 3.01 lb | 3.42 lb |
Understanding the Units
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.
What is a Pound?
The abbreviation "lb" comes from the Latin word "libra." One pound equals exactly 453.59237 grams. For rough mental math, 1 pound is slightly less than half a kilogram.