Mars

Mars fun size — Calories, Nutrition & Ingredients

UPC 5000159545341 Bars Updated 16 Oct 2026

Mars fun size
Photo: Open Food Facts contributors, CC BY-SA 3.0
Calories
451per 100 g
Protein
3.1 gper 100 g
Carbs
70.6 gper 100 g
Fat
16.9 gper 100 g

Where to buy

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Per serving (16 g): 72 calories. Per 100 g: 451 calories, 3.1 g protein, 16.9 g fat.

Label highlights: Fat: medium Saturates: high Sugars: high Salt: medium HFSS

Red means high in the UK front-of-pack traffic-light system. These colours are our calculation from the declared values, not a label on the pack. In this product:

  • Saturates: 8.13 g per 100 g (red above 5 g)
  • Sugars: 57.50 g per 100 g (red above 22.50 g)
Calculated from the nutrition data on file; check the package label. How the traffic-light colours work »

Nutrition

Portion size: 16 g

Per 100 gPer portion (%RI*)
Energy 1887 kJ / 451 kcal 302 kJ / 72 kcal (4%)
Fat 16.9 g 2.7 g (4%)
of which saturates 8.1 g 1.3 g (7%)
Carbohydrate 70.6 g 11.3 g (4%)
of which sugars 57.5 g 9.2 g (10%)
Protein 3.1 g 0.5 g (1%)
Salt 0.31 g 0.05 g (1%)

*Reference intake of an average adult (8400 kJ / 2000 kcal)

Calculated from Open Food Facts per-100 g data for the stated serving; values may differ slightly from the package label because of rounding.

Per 100 g and custom amounts

Nutrition per amount

451 calories in 100 g
Protein3.1 g
Carbohydrates70.6 g
Sugars57.5 g
Fat16.9 g
Saturated fat8.1 g
Sodium125 mg

Data: Open Food Facts (ODbL) · Photo: Open Food Facts contributors (CC BY-SA)

Where to buy Mars fun size

Search Amazon for this product. Stock and prices vary by store and location.

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Paid links: we may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Prices and availability are set by the retailer. About these links

Frequently asked questions

How many calories are in Mars fun size?

Per 100 g of Mars fun size there are 451 calories.

How much protein is in Mars fun size?

Per 100 g of Mars fun size there are 3.125 g protein.

How many carbohydrates are in Mars fun size?

Per 100 g of Mars fun size there are 70.625 g carbohydrates. Of which 57.5 g sugars.

How much sugar is in Mars fun size?

Per 100 g of Mars fun size there are 57.5 g sugars.

How much sodium (salt) is in Mars fun size?

Per 100 g of Mars fun size there are 125.0 mg sodium. UK guidance is for adults to eat no more than 6 g of salt (about 2,400 mg of sodium) a day.

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Nutrition breakdown

Macronutrients

Types of fat

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