How Much Is 0.21 Cups of Egg Whites in Grams?
0.21 cups of egg whites weighs 51.03 g. This is based on egg whites having a density of 243g 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 egg whites
- 1 cup of egg whites = 243g
- 0.21 × 243 = 51.03g
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Carton egg whites and yolks have very consistent density, making them easier to measure by volume than freshly separated eggs. If your recipe calls for a specific gram amount, carton products are the most predictable.
Egg Whites at Different Amounts
How egg whites scales across common cups measurements. Your amount (0.21 cups) is highlighted.
For reference, 0.21 cups of egg whites (51.03g) is close in weight to a large egg (no shell) (50g).
Other Amounts of Egg Whites
| Cups | US Grams | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.21 cups | 51.03 g | 53.92 g | 61.28 g |
| 0.25 cups | 60.75 g | 64.19 g | 72.96 g |
| 0.33 cups | 80.19 g | 84.74 g | 96.30 g |
| 0.5 cups | 121.50 g | 128.39 g | 145.92 g |
| 0.75 cups | 182.25 g | 192.58 g | 218.87 g |
| 1 cup | 243.00 g | 256.78 g | 291.83 g |
| 1.5 cups | 364.50 g | 385.16 g | 437.75 g |
| 2 cups | 486.00 g | 513.55 g | 583.66 g |
| 3 cups | 729.00 g | 770.33 g | 875.49 g |
| 4 cups | 972.00 g | 1,027.10 g | 1,167.33 g |
| 5 cups | 1,215.00 g | 1,283.88 g | 1,459.16 g |
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 Gram?
Grams are the preferred unit in professional kitchens and bakeries because they allow exact recipe scaling. To double a recipe, simply double the gram values. No need to worry about how tightly an ingredient is packed into a cup.