Mars Bar
Packaged product Sweets and Desserts Mars
Mars Bar contains 442 kcal per 100 g. A serving, 1 portion, 40 g (40 g) provides about 177 kcal.
Roughly 63% of its calories come from carbohydrates, with 33% from fat and 4% from protein (estimated with general energy factors).
That is close to the median for sweets and desserts on FoodFactly (431 kcal per 100 g).
The values are as declared on the product label and entered by Open Food Facts contributors.
Nutrition facts
| Nutrient | Amount per 100 g | % DV |
|---|---|---|
| Calories L | 442 kcal | |
| Total fat L | 16 g | 21% |
| Saturated fat L | 7.4 g | 37% |
| Sodium L | 280 mg | 12% |
| Total carbohydrates L | 70 g | 25% |
| Dietary fiber L | 0 g | 0% |
| Total sugars L | 65 g | |
| Protein L | 4.4 g | 9% |
% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.
Nutritional breakdown
- Protein 4%
- Carbohydrates 63%
- Fat 33%
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Nutritional insights
- Protein4.4 gin the lowest quarter of sweets and desserts (median 8 g)
- Fiber0 gin the lowest quarter of sweets and desserts (median 6.1 g)
- Sugars65 gin the top quarter of sweets and desserts (median 30 g)
- Fat16 gbelow the median for sweets and desserts (median 19.1 g)
- Saturated fat7.4 gabove the median for sweets and desserts (median 6 g)
- Sodium280 mgin the top quarter of sweets and desserts (median 132 mg)
- Protein per 100 kcal1 gprotein density, useful for comparing foods with different calorie levels
Product details
Ingredients
Ingredients not reported.
Similar products
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Peanut Butter Dark Chocolate Breakfast Bars Over Easy | 442 | 15.4 g | 51.9 g | 21.2 g |
| Natura Ricca Barrette Cereali Fichi e Mandorle Misura | 442 | 10 g | 49 g | 20 g |
| Toasted Coconut Breakfast Bars Over Easy | 442 | 15.4 g | 46.2 g | 26.9 g |
| Peanut Butter Breakfast Bar Over easy | 442 | 21.2 g | 46.2 g | 21.2 g |
| Bar Supreme Protein | 442 | 34.9 g | 30.2 g | 20.9 g |
| Zero standard the hershey comp. | 442 | 5.8 g | 73.1 g | 15.4 g |
| Fruit & Fibre Bars, Strawberry & Raspberry nākd | 443 | 17.4 g | 39.3 g | 21.9 g |
| Mikly Way® MiniI 15.5g MARS NORGE AS | 443 | 3.3 g | 73 g | 15 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Frequently asked questions
How many calories are in Mars Bar?
100 g of Mars Bar has 442 kcal. Serving, 1 portion, 40 g (40 g): about 177 kcal.
How much protein is in Mars Bar?
Mars Bar contains 4.4 g of protein per 100 g (9% of the 50 g Daily Value), or 1.8 g in serving, 1 portion, 40 g (40 g). About 4% of its calories come from protein. Compared with other sweets and desserts, that is in the lowest quarter (median 8 g).
How many carbs are in Mars Bar?
Mars Bar has 70 g of total carbohydrates per 100 g, including 0 g of fiber and 65 g of sugars. Label conventions differ: in the EU and some other regions carbohydrates are declared without fiber.
How much fat is in Mars Bar?
Mars Bar contains 16 g of fat per 100 g, of which 7.4 g is saturated (37% of the Daily Value).
How much sodium is in Mars Bar?
100 g contains 280 mg of sodium, 12% of the 2,300 mg Daily Value.
Where does this nutrition data come from?
From Open Food Facts, record dated October 8, 2026. FoodFactly last checked it on November 6, 2026. Each value above shows whether it was measured, calculated or taken from a label.
Source of the nutrition information
- Open Food Facts, record 5000159605205. License: ODbL 1.0 (Open Food Facts). Source record dated October 8, 2026. Imported November 6, 2026.
Last updated: . Data quality score: 90/100 (how it is calculated).
Product data from Open Food Facts, made available under the Open Database License. Values are as declared on the label; labels can change over time, so check the package you have.
General nutrition information, not medical advice. Individual needs differ; see our disclaimer.