How Much Egg White In One Egg?

A single large chicken egg contains about 33 grams of egg white, which works out to roughly 3.5 to 4 tablespoons of liquid egg white. That egg white delivers about 3.6 grams of protein and around 17 calories. The yolk stays separate — it holds the fat, cholesterol, and most of the vitamins — so the white is almost pure protein and water.

Those numbers come from standard USDA food composition data for a large egg, the size most US cartons are built around. Egg size changes the math, and so does whether you are weighing an egg raw or measuring it after cooking. Here is what the numbers actually look like, and where people tend to get them wrong.

How Much Egg White Is in One Egg by Size?

Egg sizes are set by weight ranges for the whole egg, shell included, and the white-to-yolk ratio stays fairly consistent across sizes. So a larger egg gives you more white, but the proportion of white to yolk does not shift much.

The table below uses USDA reference values for the edible portion of a raw egg. Treat the tablespoon figures as approximate — how thoroughly you separate the white and how you measure it will move the number slightly.

If a recipe calls for “one egg white” and you only have jumbo eggs, you are adding meaningfully more protein than the recipe assumed. For most home cooking this does not matter. In baking, where egg white affects structure and moisture, it can.

How Many Tablespoons Is One Egg White?

One large egg white measures about 2 tablespoons if you use the standard kitchen shortcut of 1 tablespoon per egg white — but that shortcut is a little low. The actual volume is closer to 3.5 to 4 tablespoons.

This is one of those kitchen rules that has been repeated so often it sounds settled. It is not accurate for a large egg. The “1 tablespoon per white” figure shows up in older recipe conversions and tends to undershoot. If precision matters — say, for a meringue or a soufflé where the ratio of white to sugar affects the outcome — separate and measure rather than counting eggs.

Liquid egg white sold in cartons is easier to measure precisely. The carton will state how many grams or milliliters equal one large egg white, and that conversion is generally reliable because the product is standardized.

Why Does the White Weigh More Than the Yolk?

The white, or albumen, makes up roughly two-thirds of an egg’s edible weight. The yolk accounts for about one-third. That ratio is built into the egg’s biology — the white is mostly water and protein, and it exists to cushion and feed the developing embryo.

By weight, a large egg’s white is around 33 grams and the yolk around 17 grams. The white is about 90 percent water. That high water content is why egg white is so low in calories relative to its protein content.

The yolk, by contrast, carries the fat, the cholesterol, and fat-soluble vitamins like A, D, E, and K. It also holds choline and lutein. Removing the yolk removes most of the egg’s micronutrients along with the fat — a trade-off worth understanding if you eat egg whites regularly.

How Much Protein Is in Egg White Compared to the Whole Egg?

A large egg white has about 3.6 grams of protein. The yolk adds roughly 2.7 grams. Together, a whole large egg provides about 6.3 grams of protein.

So the white carries the majority of the protein — roughly 60 percent — while contributing almost none of the fat. That is the reason egg whites are popular among people watching calories or cholesterol.

Egg white protein is considered high quality. It contains all nine essential amino acids, and it is digested and absorbed efficiently. The protein in egg white is often used as a reference standard in nutrition research precisely because its amino acid profile is so complete.

One clarification worth making: the cholesterol in eggs sits almost entirely in the yolk. Egg white contains essentially no cholesterol and negligible fat. If someone tells you egg whites are “lower in cholesterol,” that is accurate — but the more useful framing is that the white is simply the protein-and-water portion.

Do Egg Whites Contain All the Nutrients of the Whole Egg?

No. Egg white is largely protein and water, and it lacks most of the vitamins and minerals concentrated in the yolk.

The yolk holds the fat-soluble vitamins, choline, lutein, zeaxanthin, and much of the egg’s phosphorus and iron. The white does contain some B vitamins, particularly riboflavin, and small amounts of minerals. But if you eat only whites, you are leaving behind the more nutrient-dense half.

This matters for people who routinely discard yolks to save calories. You are not just cutting fat — you are cutting choline, a nutrient many Americans do not get enough of, and the carotenoids linked to eye health. Whole eggs and egg whites are not nutritionally interchangeable. They serve different purposes.

Does Cooking Change the Amount of Egg White?

Cooking does not change how much egg white you started with — it changes the water content and therefore the weight and volume.

Raw egg white is about 90 percent water. When you cook it, some of that water evaporates or is driven out, so a cooked egg white weighs less than the raw white it came from. The protein content stays the same. Only the water leaves.

This is why a recipe that calls for “4 egg whites” behaves differently depending on whether you measure before or after cooking. For most cooking, you separate and measure raw. For tracking protein intake, the raw weight is the number to use, since protein does not evaporate.

Is Drinking Egg Whites or Using Carton Whites the Same?

Pasteurized liquid egg whites in a carton are nutritionally very close to whites you separate yourself. Pasteurization heats the white enough to kill harmful bacteria like Salmonella without fully cooking it, and the protein content stays essentially the same.

Raw shell eggs are a different matter. Eating raw or lightly cooked egg whites from shell eggs carries a real risk of Salmonella infection. The FDA advises against consuming raw eggs, and that guidance applies to egg white as much as to yolk. People who are pregnant, young children, older adults, and anyone with a weakened immune system should be especially careful. Carton egg whites labeled pasteurized are the safer route if you want uncooked egg white.

One more point on raw egg white: it contains a protein called avidin that binds to biotin, a B vitamin. Cooking deactivates avidin. Habitually eating large amounts of raw egg white over time can interfere with biotin absorption — a genuine concern, not a hypothetical one, though it takes sustained raw consumption rather than an occasional taste of batter.

How Many Egg Whites Equal One Whole Egg?

There is no clean substitution. One whole large egg is about 33 grams of white plus about 17 grams of yolk. Two large egg whites give you roughly 66 grams of white — more white than one whole egg contains, and none of the yolk.

In baking, replacing whole eggs with whites changes fat, moisture, and structure, and results will differ. In cooking where egg is a binder or a protein source, the swap is more forgiving. If you are substituting for nutrition reasons rather than baking chemistry, measuring by weight is more reliable than counting.