How many calories are in a Snickers bar?

USDA numbers for Snickers per regular 2 oz bar, fun size bar and king size bar, with the sugar, the fat and how to log each one.

By the Cal.AI Team · Published · 3 min read

Short answer 100 g of Snickers bar has 491 calories (USDA). A typical serving, 1 bar (2 oz, 57 g), has about 280 calories with 4.3 g protein, 35 g carbs and 14 g fat. That bar holds about 28.8 g of sugars, and fat supplies close to half of its calories.

A Snickers bar combines milk chocolate, caramel, nougat and peanuts, and USDA lists it at 491 calories per 100 g. The same candy comes in very different sizes: a fun size bar (15 g) weighs about a quarter of the 2 oz bar (57 g), and a king size bar (113 g) about twice as much, so the size on the wrapper decides the count.

Calories in Snickers bar per 100 g

According to USDA FoodData Central (SR Legacy entry “Candies, MARS SNACKFOOD US, SNICKERS Bar”), 100 g of Snickers bar contains 491 calories (2,054 kJ), 7.5 g of protein, 62 g of carbohydrates and 24 g of fat.

Nutrient (per 100 g)Amount
Calories491
Energy (kilojoules)2,054 kJ
Protein7.5 g
Carbohydrates62 g
Fiber2.3 g
Sugars50 g
Total fat24 g
Saturated fat9.1 g
Sodium239 mg
Cholesterol13 mg
Potassium323 mg
Calcium93 mg
Iron0.7 mg
Vitamin C0.5 mg

Calories per serving

Per-100 g numbers are only useful once you know your portion. Typical servings of Snickers bar:

ServingCalorieskJProteinCarbsFat
1 bar (2 oz, 57 g)2801,1714.3 g35 g14 g
1 fun size bar (15 g)743081.1 g9.2 g3.6 g
1 king size bar (4 oz, 113 g)5552,3218.5 g70 g27 g

Macro breakdown

By energy, Snickers bar is about 50% carbohydrate, 6% protein and 44% fat (using 4 kcal per gram of protein and carbohydrate and 9 kcal per gram of fat).

Carbohydrate and fat share the energy almost evenly, and most of the carbohydrate is sugar: 50.5 g per 100 g. Protein is modest at 7.5 g per 100 g, about 4.3 g in a 2 oz bar, so the peanuts do not make it a filling snack.

How Snickers bar compares with similar foods

Food (per 100 g)CaloriesProteinCarbsFat
Chocolate chip cookies4925.1 g65 g25 g
M&M's (milk chocolate)4924.3 g71 g21 g
Sugar cookies4894.7 g66 g23 g
Tortilla chips4727.1 g68 g21 g
Reese's Peanut Butter Cups51510 g55 g31 g

Is Snickers bar good for weight loss?

At 491 calories per 100 g a Snickers bar is energy dense, and a 2 oz bar is about 280 calories with about 28.8 g of sugars. It also carries about 5.2 g of saturated fat, roughly a quarter of the FDA Daily Value of 20 g. If you want one, a fun size bar at about 74 calories gives you the taste for roughly a quarter of the calories of a regular bar. The king size bar at about 555 calories is close to two regular bars, so split it or skip it. For a lighter bar, a Kit Kat (42 g) is about 218 calories, mainly because it is smaller.

How to log Snickers bar in Cal.AI

Use Barcode on the wrapper, which carries the exact bar size, or search "Snickers" in Cal.AI and pick the size you ate: 57 g for a 2 oz bar, 15 g per fun size bar or 113 g for a king size bar. For fun size bars, log one and tap the serving + control for each extra bar. The common mistake is logging a king size bar as a regular one, which undercounts it by about 275 calories.

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Frequently asked questions

How many calories are in a fun size Snickers?

A fun size Snickers bar (15 g) has about 74 calories in USDA data, with about 1.1 g of protein, 9.2 g of carbohydrate, 3.6 g of fat and 7.6 g of sugars. They add up quickly from a bowl: four fun size bars (60 g) come to about 295 calories, slightly more than one 2 oz bar at about 280.

How many calories are in a king size Snickers?

A king size Snickers bar (4 oz, 113 g) has about 555 calories, with about 8.5 g of protein, 69.5 g of carbohydrate, 27 g of fat and 57 g of sugars, according to USDA data. That is nearly the same as two 2 oz bars. Eating half now and saving the rest cuts it to about 277 calories.

How much sugar is in a Snickers bar?

USDA lists 50.5 g of sugars per 100 g of Snickers, so a 2 oz bar (57 g) has about 28.8 g and a fun size bar about 7.6 g. That figure is total sugars, so the added-sugars line on the wrapper is the exact check. For comparison, the FDA Daily Value for added sugars is 50 g a day.

Sources

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Cal.AI TeamWe build Cal.AI, an AI calorie counter for iPhone, Apple Watch and Android. Every number in this article links to its source; see how we research and fact-check. This is general nutrition-tracking guidance, not medical advice.