Protein content
A 1 large serving of hard-boiled egg contains 6.3 g of protein - a moderate source of protein, about 13% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is moderately protein-dense.
| Serving | 1 large (50 g) |
|---|---|
| Protein per serving | 6.3 g |
| Protein per 100 g | 12.6 g |
| Calories per serving | 78 kcal |
| Protein density | 33% of calories |
| Share of 50 g Daily Value | 13% |
| Protein quality | Complete protein |
| Category | Eggs |
| Food type | Whole food |
| USDA record | FoodData Central #173424 |
A typical 1 large serving of hard-boiled egg contains 6.3 grams of protein (12.6 g per 100 g), which makes it a moderate source of protein. That covers roughly 13% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Protein accounts for roughly 33% of the calories in hard-boiled egg, making it moderately protein-dense. The rest comes from fat and carbohydrate, so it adds a solid amount of protein while still carrying real energy - useful when you are eating to a calorie target rather than under one.
Among the 20 eggs in the database, hard-boiled egg ranks 10th by protein per serving, and 418th out of all 796 foods on the site. Set against egg, another egg entry in the database, a serving carries about 0.1 g more protein (egg has 6.2 g per 1 large).
It is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own. The serving above is counted by piece at 50 g. Because pieces vary, the per-100 g figure is the one to use when comparing this against a food measured a different way.
Boiling does not change protein content, only digestibility, which improves with cooking.
Source: USDA FoodData Central #173424 - "Egg, whole, cooked, hard-boiled" (SR Legacy, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Hard-boiled egg has 12.6 g of protein per 100 g. A typical 1 large serving (50 g) provides 6.3 g.
Yes. Hard-boiled egg is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
A 1 large serving of hard-boiled egg contains 6.3 g of protein, about 13% of the 50 g reference Daily Value.
Hard-boiled egg is a moderate source of protein, and about 33% of its calories come from protein, which makes it moderately protein-dense. Set against egg, another egg entry in the database, a serving carries about 0.1 g more protein (egg has 6.2 g per 1 large).
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