How Much Is 2.5 Cups of Butter in Ounces?
2.5 cups of butter equals 20.02 oz. Butter has a density of 227g per cup (227g per cup), which means it's relatively heavy compared to other common cooking ingredients. For comparison, 2.5 cups of all-purpose flour would be 11.04 oz.
Formula and Step-by-Step
- Start with 2.5 cups of butter
- 1 cup of butter = 227g
- 2.5 × 227 = 567.5g
- Convert grams to ounces: 567.5 ÷ 28.3495 = 20.02 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Cold butter straight from the fridge is hardest to measure by volume. Cut it into tablespoon-sized pieces using the wrapper markings for accuracy.
Butter at Different Amounts
How butter scales across common cups measurements. Your amount (2.5 cups) is highlighted.
For reference, 2.5 cups of butter (567.5g) is close in weight to a basketball (624g).
Other Amounts of Butter
| Cups | US Ounces | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 2.00 oz | 2.12 oz | 2.40 oz |
| 0.33 cups | 2.64 oz | 2.79 oz | 3.17 oz |
| 0.5 cups | 4.00 oz | 4.23 oz | 4.81 oz |
| 0.75 cups | 6.01 oz | 6.35 oz | 7.21 oz |
| 1 cup | 8.01 oz | 8.46 oz | 9.62 oz |
| 1.5 cups | 12.01 oz | 12.69 oz | 14.42 oz |
| 2 cups | 16.01 oz | 16.92 oz | 19.23 oz |
| 2.5 cups | 20.02 oz | 21.15 oz | 24.04 oz |
| 3 cups | 24.02 oz | 25.38 oz | 28.85 oz |
| 4 cups | 32.03 oz | 33.84 oz | 38.47 oz |
| 5 cups | 40.04 oz | 42.31 oz | 48.08 oz |
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 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.