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How Much Is 1.03 Ounces of Egg Whites in Cups?

1.03 ounces of egg whites equals 0.12 cups. That's 29.2g, and Egg whites has a density of 243g per cup. Because ounces measure weight and cups measure volume, the result depends on the ingredient's density.

1.03 ounces of egg whites
=
0.12cups
Result using all cup standards info
0.12 cups (US) 0.11 cups (Metric Cup) 0.10 cups (Imperial Cup)
0.12

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 243g/cup = cups
  1. Start with 1.03 ounces of egg whites
  2. Convert ounces to grams: 1.03 × 28.35 = 29.2g
  3. 1 cup of egg whites = 243g
  4. 29.2g ÷ 243g/cup = 0.12 cups

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

A whole large egg without shell weighs about 50g. When separating eggs for a recipe, weigh the whites and yolks individually for the most accurate results.

Egg Whites at Different Amounts

How egg whites scales across common ounces measurements. Your amount (1.03 ounces) is highlighted.

1 oz0.12 cups1.03 oz0.12 cups2 oz0.23 cups3 oz0.35 cups4 oz0.47 cups5 oz0.58 cups6 oz0.7 cups8 oz0.93 cups

Other Amounts of Egg Whites

Ounces US Cups Metric Cup Imperial Cup
1 ounce 0.12 cups 0.11 cups 0.10 cups
1.03 ounces 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?

An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.

What is a Cup?

In US cooking, a cup measures volume, not weight. One standard US cup holds 236.588 ml of liquid. Because different ingredients have different densities, a cup of one ingredient can weigh very differently from a cup of another.

Frequently Asked Questions

About 0.12 cups, based on egg whites having a density of 243g per cup. The exact amount depends on how the ingredient is measured and the specific product.
First convert ounces to grams (1 ounce = 28.3495g), then divide by 243 (grams per cup). For 1.03 ounces: 1.03 × 28.3495 = 29.2g, then 29.2 ÷ 243 = 0.12 cups.
The most accurate way is to weigh egg whites on a kitchen scale, since individual eggs vary in size. If measuring by volume, pour into the measuring cup and read the level at eye height.
Weight-per-cup values vary because of differences in how the ingredient is measured (spooned vs scooped), grind size, moisture content, and settling during storage. Our values use standardized measurement methods from established culinary references.
Reverse the conversion: 0.12 cups × 243g/cup = 29.2g, then 29.2g ÷ 28.3495 = 1.03 ounces. Or use the Cups to Ounces converter.