How Much Is 1 Teaspoon of Egg Whites in Ounces?

1 teaspoon of egg whites weighs 0.18 oz. This is based on egg whites having a density of 243g per cup. Because teaspoons measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 1 teaspoon.

1 teaspoon of egg whites
=
0.18oz
Result using all teaspoon standards info
0.18 oz (US) 0.18 oz (Metric Teaspoon) 0.21 oz (Imperial Teaspoon)
1 teaspoon of egg whites is also
0.18

Formula and Step-by-Step

teaspoons × 5.06g/tsp ÷ 28.3495g/oz = ounces
  1. Start with 1 teaspoon of egg whites
  2. 1 teaspoon of egg whites = 5.06g
  3. 1 × 5.06 = 5.06g
  4. Convert grams to ounces: 5.06 ÷ 28.3495 = 0.18 oz

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 teaspoons measurements. Your amount (1 teaspoon) is highlighted.

0.25 tsp0.04 oz0.5 tsp0.09 oz1 tsp0.18 oz1.5 tsp0.27 oz2 tsp0.36 oz3 tsp0.54 oz4 tsp0.71 oz5 tsp0.89 oz

Other Amounts of Egg Whites

Teaspoons US Ounces Metric Teaspoon Imperial Teaspoon
0.25 teaspoons 0.04 oz 0.05 oz 0.05 oz
0.5 teaspoons 0.09 oz 0.09 oz 0.11 oz
1 teaspoon 0.18 oz 0.18 oz 0.21 oz
1.5 teaspoons 0.27 oz 0.27 oz 0.32 oz
2 teaspoons 0.36 oz 0.36 oz 0.43 oz
3 teaspoons 0.54 oz 0.54 oz 0.64 oz
4 teaspoons 0.71 oz 0.72 oz 0.86 oz
5 teaspoons 0.89 oz 0.91 oz 1.07 oz
6 teaspoons 1.07 oz 1.09 oz 1.29 oz
8 teaspoons 1.43 oz 1.45 oz 1.72 oz

Understanding the Units

What is a Teaspoon?

In baking, teaspoon measurements are critical for ingredients where precision changes the outcome. Too much baking soda (1 tsp = 6g) creates a metallic taste, while too little means flat results.

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.

Frequently Asked Questions

About 0.18 oz, 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.
Multiply the number of teaspoons by 5.06 (grams per teaspoon for egg whites), then divide by 28.3495 to convert grams to ounces. For 1 teaspoon: 1 × 5.06 = 5.06g, then 5.06 ÷ 28.3495 = 0.18 oz.
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 spoon 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.