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.
Calories scale with portion. Here's how a typical kit kat serving translates in your tracker:
Carb-forward — most of its 519 kcal come from carbohydrate, so it's best placed around training when your body uses carbs most readily.
How kit kat stacks up on calories and protein against foods people commonly compare it to:
Point your iPhone camera at kit kat and Spotwell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.
Download on theApp StoreKit Kat has approximately 519 calories per 100g. A typical serving — 3 oz (85g) — comes in at 441 calories.
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.
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.
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.