A typical serving of butter (1 tbsp, 14 g) has about 102 calories. Per 100 g: 717 kcal, 0.9 g protein, 0.1 g carbs, 81.1 g fat. The same 100 g carries 0.1 g of sugar. Most of the energy comes from fat.
| Serving | Weight | Calories |
|---|---|---|
| 1 tbsp | 14 g | 102 kcal |
| 1 pat | 5 g | 36 kcal |
| 1 stick | 113 g | 810 kcal |
| 100 g | 100 g | 717 kcal |
Pure dairy fat: each tablespoon is about 102 calories, melted or not. On the energy-density scale, 717 kcal per 100 g puts butter at the very high end.
A typical serving (1 tbsp, 14 g) has about 102 calories, and 100 g has 717 kcal. Calories scale with weight, so double the portion means double the number.
There are 0.9 g of protein in 100 g of butter, which works out to about 0.1 g per serving (1 tbsp). Treat it as an energy source rather than a protein source.
Yes, in the plain arithmetic sense: 81.1 g of fat per 100 g supplies about 100% of the calories. Whether that fits your day depends on your totals, not on the food alone.
Every value on this page comes from USDA FoodData Central, entry 173410 (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 butter 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 173410 (SR Legacy). Serving calories are computed from the per-100-g values.
