How Much Is 0.09 Cups of Buttermilk in Ounces?
0.09 cups of buttermilk equals 0.78 oz. Buttermilk has a density of 245g per cup (245g per cup), which means it's relatively heavy compared to other common cooking ingredients. For comparison, 0.09 cups of all-purpose flour would be 0.40 oz.
Formula and Step-by-Step
- Start with 0.09 cups of buttermilk
- 1 cup of buttermilk = 245g
- 0.09 × 245 = 22.05g
- Convert grams to ounces: 22.05 ÷ 28.3495 = 0.78 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Liquid densities vary: oils weigh less per cup than water, while syrups and honey weigh more. This is why ingredient-specific conversions matter even for liquids.
Buttermilk at Different Amounts
How buttermilk scales across common cups measurements. Your amount (0.09 cups) is highlighted.
For reference, 0.09 cups of buttermilk (22.05g) is close in weight to an AA battery (23g).
Other Amounts of Buttermilk
| Cups | US Ounces | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.09 cups | 0.78 oz | 0.82 oz | 0.93 oz |
| 0.25 cups | 2.16 oz | 2.28 oz | 2.59 oz |
| 0.33 cups | 2.85 oz | 3.01 oz | 3.42 oz |
| 0.5 cups | 4.32 oz | 4.57 oz | 5.19 oz |
| 0.75 cups | 6.48 oz | 6.85 oz | 7.78 oz |
| 1 cup | 8.64 oz | 9.13 oz | 10.38 oz |
| 1.5 cups | 12.96 oz | 13.70 oz | 15.57 oz |
| 2 cups | 17.28 oz | 18.26 oz | 20.76 oz |
| 3 cups | 25.93 oz | 27.40 oz | 31.14 oz |
| 4 cups | 34.57 oz | 36.53 oz | 41.52 oz |
| 5 cups | 43.21 oz | 45.66 oz | 51.89 oz |
Understanding the Units
What is a Cup?
There are three cup standards used worldwide. The US cup (236.588 ml) is used in American recipes. The metric cup (250 ml) is standard in Australia, New Zealand, and some parts of Asia. The imperial cup (284.131 ml) appears in older British and Canadian recipes. A metric cup holds about 5.7% more than a US cup, while an imperial cup holds about 20% more. Using the wrong standard can noticeably affect a recipe.
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.