A typical serving of hamburger bun (1 bun, 44 g) has about 123 calories. Per 100 g: 279 kcal, 9.8 g protein, 50.1 g carbs, 3.9 g fat. The same 100 g carries 1.8 g of fiber and 7.3 g of sugar. Most of the energy comes from carbohydrate.
| Serving | Weight | Calories |
|---|---|---|
| 1 bun | 44 g | 123 kcal |
| 100 g | 100 g | 279 kcal |
The quiet 120 calories under every burger patty. On the energy-density scale, 279 kcal per 100 g puts hamburger bun at the high end.
A typical serving (1 bun, 44 g) has about 123 calories, and 100 g has 279 kcal. Calories scale with weight, so double the portion means double the number.
There are 9.8 g of protein in 100 g of hamburger bun, which works out to about 4.3 g per serving (1 bun). Treat it as an energy source rather than a protein source.
There are 50.1 g of carbohydrate per 100 g of hamburger bun, or about 22 g in 1 bun (44 g).
Every value on this page comes from USDA FoodData Central, entry 172796 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
Snap a photo of your plate in Joules and the calories and macros for hamburger bun are logged for you.
Get JoulesA note on accuracy: calculators like this one provide estimates based on population-level formulas — your real needs vary with genetics, muscle mass, medical conditions, and more. Results are for information only and are not medical advice, a diagnosis, or a prescription. Talk to a doctor or registered dietitian before making significant changes to your diet or exercise, especially if you have a health condition, are pregnant, or are under 18.
Nutrition data: USDA FoodData Central, FDC ID 172796 (SR Legacy). Serving calories are computed from the per-100-g values.
