A typical serving of cheddar cheese (1 slice, 28 g) has about 113 calories. Per 100 g: 403 kcal, 22.9 g protein, 3.4 g carbs, 33.3 g fat. The same 100 g carries 0.5 g of sugar. Most of the energy comes from fat.
| Serving | Weight | Calories |
|---|---|---|
| 1 slice | 28 g | 113 kcal |
| 1 cup, melted | 244 g | 983 kcal |
| 1 cup, shredded | 113 g | 455 kcal |
| 1 cubic inch | 17 g | 69 kcal |
| 100 g | 100 g | 403 kcal |
Cheese math is unforgiving: one 1-oz slice of cheddar is about 113 calories. On the energy-density scale, 403 kcal per 100 g puts cheddar cheese at the very high end. Protein density is strong: about 5.7 g of protein per 100 calories.

A typical serving (1 slice, 28 g) has about 113 calories, and 100 g has 403 kcal. Calories scale with weight, so double the portion means double the number.
There are 22.9 g of protein in 100 g of cheddar cheese, which works out to about 6.4 g per serving (1 slice). It contributes meaningful protein, though most of the calories come from elsewhere.
Yes, in the plain arithmetic sense: 33.3 g of fat per 100 g supplies about 74% 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 173414 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
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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 173414 (SR Legacy). Serving calories are computed from the per-100-g values.