How Much Is 3.98 Ounces of Butter in Cups?
3.98 ounces of butter equals 0.50 cups. Butter has a density of 227g per cup. A lighter ingredient like flour (125g/cup) would fill more volume at the same weight, which is why ingredient-specific conversions matter.
Formula and Step-by-Step
- Start with 3.98 ounces of butter
- Convert ounces to grams: 3.98 × 28.35 = 112.83g
- 1 cup of butter = 227g
- 112.83g ÷ 227g/cup = 0.50 cups
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 ounces measurements. Your amount (3.98 ounces) is highlighted.
Other Amounts of Butter
| Ounces | US Cups | Metric Cup | Imperial Cup |
|---|---|---|---|
| 1 ounce | 0.12 cups | 0.12 cups | 0.10 cups |
| 2 ounces | 0.25 cups | 0.24 cups | 0.21 cups |
| 3 ounces | 0.37 cups | 0.35 cups | 0.31 cups |
| 3.98 ounces | 0.50 cups | 0.47 cups | 0.41 cups |
| 4 ounces | 0.50 cups | 0.47 cups | 0.42 cups |
| 5 ounces | 0.62 cups | 0.59 cups | 0.52 cups |
| 6 ounces | 0.75 cups | 0.71 cups | 0.62 cups |
| 8 ounces | 1.00 cup | 0.95 cups | 0.83 cups |
| 10 ounces | 1.25 cups | 1.18 cups | 1.04 cups |
| 12 ounces | 1.50 cups | 1.42 cups | 1.25 cups |
| 16 ounces | 2.00 cups | 1.89 cups | 1.66 cups |
Understanding the Units
What is an Ounce?
An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.
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.