How Much Is 0.21 Cups of Buttermilk in Grams?
0.21 cups of buttermilk weighs 51.45 g. This is based on buttermilk having a density of 245g per cup. Because cups measure volume and grams measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 0.21 cups.
Formula and Step-by-Step
- Start with 0.21 cups of buttermilk
- 1 cup of buttermilk = 245g
- 0.21 × 245 = 51.45g
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 (0.21 cups) is highlighted.
For reference, 0.21 cups of buttermilk (51.45g) is close in weight to a large egg (no shell) (50g).
Other Amounts of Buttermilk
| Cups | US Grams | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.21 cups | 51.45 g | 54.37 g | 61.79 g |
| 0.25 cups | 61.25 g | 64.72 g | 73.56 g |
| 0.33 cups | 80.85 g | 85.43 g | 97.10 g |
| 0.5 cups | 122.50 g | 129.44 g | 147.12 g |
| 0.75 cups | 183.75 g | 194.17 g | 220.68 g |
| 1 cup | 245.00 g | 258.89 g | 294.23 g |
| 1.5 cups | 367.50 g | 388.33 g | 441.35 g |
| 2 cups | 490.00 g | 517.78 g | 588.47 g |
| 3 cups | 735.00 g | 776.67 g | 882.70 g |
| 4 cups | 980.00 g | 1,035.56 g | 1,176.93 g |
| 5 cups | 1,225.00 g | 1,294.44 g | 1,471.17 g |
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 a Gram?
Weighing ingredients in grams eliminates the variability of volume measurements. A cup of flour can weigh anywhere from 120g to 160g depending on how it was scooped, but 120g of flour is always 120g of flour.