Calorie data · Grains← All foods

How many calories in
frosted flakes?

Frosted Flakes is 375 calories per 100g, mostly carbs at 91g. A dense carb source — sensible to weigh dry vs cooked carefully. Common in fitness meal prep for steady-energy carbohydrates.

375
kcal · 100g
4.7g
Protein
91g
Carbs
0.5g
Fat
Servings

Common serving sizes.

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

Serving
Calories
Protein
3 oz (85g)
319 kcal
4.0g
4 oz (113g)
424 kcal
5.3g
1 cup (~150g)
563 kcal
7.1g
In your day

What 375 calories means.

Carb-forward — most of its 375 kcal come from carbohydrate, so it's best placed around training when your body uses carbs most readily.

Share of a 2,000-kcal day
19%
per 100g · 1.3g protein per 100 kcal
Time to burn it off
🚶 Walking71 min
🏃 Running37 min
🚴 Cycling41 min
Estimated for a 70 kg / 154 lb adult
Comparison

Frosted Flakes vs. similar foods.

How frosted flakes stacks up on calories and protein against foods people commonly compare it to:

Food
Calories
Protein / 100 kcal
Frosted Flakes
375 kcal / 100g
1.3g
379 kcal / 100g
4.5g
379 kcal / 100g
3.4g
367 kcal / 100g
3.5g
Track this food

Skip the lookup. Snap the plate.

Point your iPhone camera at frosted flakes and Spotwell's AI estimates the portion and macros in a few seconds. Check it, adjust anything that looks off, and log it.

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FAQ

Quick answers.

How many calories in frosted flakes?

Frosted Flakes has approximately 375 calories per 100g. A typical serving — 3 oz (85g) — comes in at 319 calories.

How much protein is in frosted flakes?

4.7g of protein per 100g. That puts frosted flakes at roughly 1.3g of protein per 100 calories — a useful lens when comparing to other grains sources.

How do I log frosted flakes 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 a few seconds. Adjust the value if it looks off.

Is frosted flakes good for weight loss?

It depends on your overall calorie target. Frosted Flakes sits in a moderate calorie range. It can fit any goal — weight loss, maintenance, or muscle gain — when portioned to your daily target.