How Much Is 12 Ounces of Egg Whites in Cups?
12 ounces of egg whites equals 1.40 cups. Egg whites has a density of 243g 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 12 ounces of egg whites
- Convert ounces to grams: 12 × 28.35 = 340.19g
- 1 cup of egg whites = 243g
- 340.19g ÷ 243g/cup = 1.4 cups
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
One large egg white weighs approximately 30g and one large egg yolk weighs approximately 17g. Weighing separated eggs is more reliable than counting, since individual eggs vary in size.
Egg Whites at Different Amounts
How egg whites scales across common ounces measurements. Your amount (12 ounces) is highlighted.
Other Amounts of Egg Whites
| Ounces | US Cups | Metric Cup | Imperial Cup |
|---|---|---|---|
| 1 ounce | 0.12 cups | 0.11 cups | 0.10 cups |
| 2 ounces | 0.23 cups | 0.22 cups | 0.19 cups |
| 3 ounces | 0.35 cups | 0.33 cups | 0.29 cups |
| 4 ounces | 0.47 cups | 0.44 cups | 0.39 cups |
| 5 ounces | 0.58 cups | 0.55 cups | 0.49 cups |
| 6 ounces | 0.70 cups | 0.66 cups | 0.58 cups |
| 8 ounces | 0.93 cups | 0.88 cups | 0.78 cups |
| 10 ounces | 1.17 cups | 1.10 cups | 0.97 cups |
| 12 ounces | 1.40 cups | 1.32 cups | 1.17 cups |
| 16 ounces | 1.87 cups | 1.77 cups | 1.55 cups |
Understanding the Units
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.
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.