Fast Food

Q: How many calories in slice of fast food?

About 312 calories, with roughly 12.4g of protein. slice weighs about 115g. Use the slider above for any other portion.

One food. Every number that matters.

271

cal per 100 g

Portion explorer

How much are you eating?

Drag the slider or type grams. Everything below updates live.

= 4.1 oz

Calories

312

Protein

12.4g

Carbs

38.1g

Fat

12.1g

Protein 16% Carbs 49% Fat 35%

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Fast Food: 271 cal per 100g, mixed macros.

No single number tells the story. Use the slider to fit it to your day.

Reverse calculator

Work backwards from your target.

To hit grams of protein, eat:

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For calories, eat:

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Burn it off

What per 100 g costs.

Minutes for a 155 lb (70 kg) adult to burn 271 cal. Adjust down for lighter, up for heavier.

Walking

min · 3.5 mph

Cycling

min · easy pace

Jogging

min · 5 mph

Swimming

min · freestyle

Estimates from the Compendium of Physical Activities. Real burn depends on weight, intensity, and fitness.

Full nutrient panel · per 100 g

What else is in there.

From USDA FoodData Central (SR Legacy). %DV against the FDA 2,000-calorie reference.

Fiber2.2 g8%

Sugar3.34 g—

Saturated fat4.226 g21%

Cholesterol17 mg6%

Sodium597 mg26%

Potassium169 mg4%

Calcium179 mg14%

Iron2.48 mg14%

Magnesium23 mg5%

Zinc1.27 mg12%

Vitamin C1.2 mg1%

Vitamin E0.82 mg5%

Vitamin A69 mcg8%

Vitamin D0 mcg0%

Vitamin B60.06 mg4%

Vitamin B120.35 mcg15%

Folate106 mcg27%

Niacin3.495 mg22%

Caffeine0 mg—

How it stacks

Compared to its neighbors.

per 100 g, as-served. Same portion, honest comparison.

Mcdonald's

Almost identical calories.

Cal264 Protein12.9 g Fat10.1 g

Mcdonald's

Almost identical calories.

Cal263 Protein13 g Fat11.8 g

Mcdonald's

11 more calories per 100g · +4g fat.

Cal282 Protein11.3 g Fat14.6 g

Common questions

The stuff people actually ask.

How many calories in slice of fast food?

About 312 calories, with roughly 12.4g of protein. slice weighs about 115g. Use the slider above for any other portion.

Is fast food actually healthy, or is that marketing?

By the numbers on this page: balanced enough that "healthy" is the wrong axis. It is food.

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