A large boiled egg contains about 70 calories. That’s true whether it’s soft-boiled or hard-boiled, since the cooking time doesn’t change the nutritional content. Those 70 calories come packed with 6.3 grams of protein and 5.3 grams of fat, with virtually no carbohydrates (just over half a gram).
Calories by Egg Size
Most nutrition labels default to a “large” egg, but eggs come in several sizes, and the calorie count shifts accordingly. The USDA defines egg sizes by minimum weight per dozen, which works out to roughly these individual weights and calorie counts:
- Small: about 43 grams, roughly 54 calories
- Medium: about 50 grams, roughly 63 calories
- Large: about 57 grams, roughly 70 calories
- Extra large: about 64 grams, roughly 80 calories
- Jumbo: about 71 grams, roughly 90 calories
If you buy jumbo eggs and count them as 70 calories each, you’re underestimating by nearly 30%. Check the size printed on your carton.
White vs. Yolk: Where the Calories Live
The egg white from one large egg has only about 20 calories and delivers 4 grams of protein. The yolk carries the remaining 50 calories, along with all the fat and about 40% of the protein. If you’re eating eggs purely to keep calories low while getting protein, whites alone are efficient. But you lose a lot by ditching the yolk.
All 186 milligrams of cholesterol in an egg sit in the yolk, along with nearly all the vitamins and minerals. The yolk is where you’ll find vitamin D, B12, choline, and selenium. In practical terms, eating the whole egg gives you a much more nutritionally complete food for just 50 extra calories.
What a Boiled Egg Gives You Beyond Calories
Eggs are unusually nutrient-dense for their calorie count. A single medium egg provides about 56% of your daily B12, 32% of your vitamin D, 36% of your choline, 22% of your selenium, and 18% of your riboflavin. Choline is particularly notable because most people don’t get enough of it. It plays a key role in brain function and liver health.
One large egg also contains 1.63 grams of saturated fat, which is a relatively small amount in the context of a full day’s eating. The protein in a cooked egg is highly absorbable. Cooking actually matters here: your body absorbs roughly 40% less protein from a raw egg than from a cooked one, so boiling is doing real nutritional work.
Boiled vs. Other Cooking Methods
Boiling and poaching are the lowest-calorie ways to cook an egg because you’re not adding any fat. A fried egg picks up extra calories from the oil or butter in the pan, typically adding 30 to 50 calories depending on how much fat you use. Scrambled eggs usually involve butter or milk, pushing the total higher still. If calories are your main concern, boiled eggs are hard to beat.
Why Boiled Eggs Keep You Full
Calorie counts only tell part of the story. A study published in the Journal of the American College of Nutrition compared an egg breakfast to a bagel breakfast with the same number of calories in overweight women. The egg group felt significantly more satisfied starting within 15 minutes of eating, and that feeling lasted at least 90 minutes. More importantly, they ate noticeably less at lunch 3.5 hours later and continued eating fewer total calories for the rest of the day, with the difference persisting for a full 36 hours.
The combination of protein and fat in a whole egg slows digestion and keeps blood sugar more stable than a carbohydrate-heavy breakfast with equivalent calories. This makes boiled eggs a practical choice if you’re trying to manage your appetite, not just your calorie intake.
Quick Reference for Meal Planning
Two large boiled eggs give you 140 calories and about 12.6 grams of protein. That’s roughly equivalent to a small container of Greek yogurt, but with more vitamins and healthy fats. Three eggs bring you to 210 calories and nearly 19 grams of protein, which is a substantial breakfast on its own or paired with toast and fruit.
Because boiled eggs keep well in the refrigerator for up to a week, they’re one of the easiest high-protein foods to prepare in advance. The calorie count stays the same whether you eat them warm or cold, peeled or sliced into a salad.