How Much Is 331 Cups of Butter in Pounds?
331 cups of butter weighs 165.65 lb. This is based on butter having a density of 227g 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 331 cups.
Formula and Step-by-Step
- Start with 331 cups of butter
- 1 cup of butter = 227g
- 331 × 227 = 75,137g
- Convert grams to pounds: 75,137 ÷ 453.592 = 165.65 lb
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Softened butter and melted butter measure differently by volume. Melted butter settles with no air pockets, giving a slightly higher weight per cup.
Butter at Different Amounts
How butter scales across common cups measurements. Your amount (331 cups) is highlighted.
Other Amounts of Butter
| Cups | US Pounds | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 0.13 lb | 0.13 lb | 0.15 lb |
| 0.33 cups | 0.17 lb | 0.17 lb | 0.20 lb |
| 0.5 cups | 0.25 lb | 0.26 lb | 0.30 lb |
| 0.75 cups | 0.38 lb | 0.40 lb | 0.45 lb |
| 1 cup | 0.50 lb | 0.53 lb | 0.60 lb |
| 1.5 cups | 0.75 lb | 0.79 lb | 0.90 lb |
| 2 cups | 1.00 lb | 1.06 lb | 1.20 lb |
| 3 cups | 1.50 lb | 1.59 lb | 1.80 lb |
| 4 cups | 2.00 lb | 2.12 lb | 2.40 lb |
| 5 cups | 2.50 lb | 2.64 lb | 3.01 lb |
| 331 cups | 165.65 lb | 175.04 lb | 198.94 lb |
Understanding the Units
What is a Cup?
The US cup (236.588 ml) is slightly smaller than the metric cup used in Australia and some other countries (250 ml). When following recipes from different countries, check which cup standard is being used.
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.