A large egg contains about 72 calories. That number shifts depending on the size of the egg, whether you eat the whole thing or just the white, and how you cook it. Here’s a complete breakdown so you can count with confidence.
Calories by Egg Size
Egg sizes are standardized by weight in the U.S., and the calorie difference between the smallest and largest is meaningful if you’re eating several a day.
- Small (38 g): 54 calories
- Medium (44 g): 63 calories
- Large (50 g): 72 calories
- Extra-large (56 g): 80 calories
- Jumbo (63 g): 90 calories
Most nutrition labels, recipes, and calorie databases assume a large egg. If your carton says “jumbo,” you’re getting roughly 25% more calories per egg than the standard reference. A three-egg breakfast with jumbo eggs comes to 270 calories before you add butter or oil, compared to 216 with large eggs.
Yolk vs. White: Where the Calories Live
The yolk and white split the egg’s calories unevenly. For one large egg, the white contributes only about 18 to 20 calories with virtually zero fat, while the yolk accounts for the remaining 50 or so calories along with all 5 grams of fat. If you’re trimming calories, swapping to egg whites cuts each egg from around 70 calories down to 20.
The trade-off is real, though. The yolk carries 2.7 of the egg’s 6.3 grams of protein, plus nearly all of its vitamins and minerals. A single large egg yolk delivers 147 milligrams of choline (27% of the Daily Value), a nutrient most people don’t get enough of that supports brain function and liver health. Egg whites give you lean protein, but the yolk is where the nutritional density sits.
Full Nutrition Profile of a Large Egg
Beyond calories, here’s what one large egg provides:
- Protein: 6.3 grams
- Total fat: 4.5 grams
- Carbohydrates: less than 1 gram
- Cholesterol: 180 milligrams
- Fiber: 0 grams
Eggs are essentially a zero-carb food, which makes them popular in low-carb and ketogenic diets. The protein is also highly complete, containing all nine essential amino acids your body can’t produce on its own.
How Cooking Changes the Numbers
A plain boiled or poached egg keeps the calorie count at that baseline 72. Frying an egg in a tablespoon of butter adds roughly 100 calories and 11 grams of fat. Scrambled eggs often call for milk or cream, which bumps the total further. If you’re tracking closely, the cooking fat matters more than the egg itself.
Cooking also affects how much protein your body actually absorbs. Protein from cooked eggs is digested about 40% more efficiently than protein from raw eggs. Heat changes the structure of the proteins, making them easier for your digestive enzymes to break down. So a raw egg in a smoothie delivers noticeably less usable protein than a scrambled one on a plate, even though the calorie count is the same.
Eggs, Satiety, and Weight Management
Eggs punch above their calorie weight when it comes to keeping you full. In a clinical trial, men who ate two poached eggs on toast for breakfast reported significantly more satiety and less hunger than those who ate calorie-matched breakfasts of cereal with toast or a croissant with orange juice. The egg group also ate less the rest of the day: about 160 fewer calories at lunch, and roughly 300 fewer calories at dinner, compared to the croissant group.
That effect is largely driven by the protein content. At just 72 calories, a single egg delivers over 6 grams of protein with almost no carbohydrates, a combination that slows digestion and keeps blood sugar stable. Two or three eggs for breakfast can provide 12 to 19 grams of protein for under 220 calories, which is a strong return for anyone managing their intake.
What About Cholesterol?
One large egg contains 180 milligrams of cholesterol, all of it in the yolk. Older guidelines capped dietary cholesterol at 300 milligrams per day, but current federal dietary guidelines have moved away from that specific number, instead recommending you keep dietary cholesterol “as low as possible without compromising the nutritional adequacy of the diet.”
The American Heart Association’s 2019 guidance says healthy people can include up to one whole egg per day, and older adults with normal cholesterol levels can have up to two. If you already have high LDL cholesterol, the combination of saturated fat and dietary cholesterol in eggs is worth paying attention to, since together they’re more likely to contribute to plaque buildup in arteries. For most people, though, a couple of eggs a day fits comfortably within a heart-healthy eating pattern.
Quick Calorie Comparisons
If you’re deciding between egg formats, here’s how common options stack up per serving:
- 1 whole large egg (boiled or poached): ~72 calories, 6 g protein
- 1 large egg white: ~20 calories, 4 g protein
- 1 whole large egg fried in butter: ~170 calories, 6 g protein
- 2-egg omelet with no added fat: ~144 calories, 12.6 g protein
Egg whites are the clear winner for pure calorie efficiency, delivering 4 grams of protein for just 20 calories with zero fat and zero cholesterol. But if you’re not on a strict cut, whole eggs offer substantially more nutrition for a modest calorie increase. For most people, eating the whole egg is the better deal.