Calorie data · Sweets← All foods

How many calories in
kit kat?

Per 100g, kit kat delivers 519 calories and 65g of carbs. High fat content drives most of the calories. Per-piece numbers depend heavily on size — log accurately by reading the package.

519
kcal · 100g
6g
Protein
65g
Carbs
25g
Fat
Servings

Common serving sizes.

Calories scale with portion. Here's how a typical kit kat serving translates in your tracker:

Serving
Calories
Protein
3 oz (85g)
441 kcal
5.1g
4 oz (113g)
586 kcal
6.8g
1 cup (~150g)
779 kcal
9.0g
Track this food

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FAQ

Quick answers.

How many calories in kit kat?

Kit Kat has approximately 519 calories per 100g. A typical serving — 3 oz (85g) — comes in at 441 calories.

How much protein is in kit kat?

6g of protein per 100g. That puts kit kat at roughly 1.2g of protein per 100 calories — a useful lens when comparing to other sweets sources.

How do I log kit kat accurately?

The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With SpotWell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.

Is kit kat good for weight loss?

It depends on your overall calorie target. Kit Kat is calorie-dense at 519 kcal per 100g, so portion control matters more than with low-cal foods.