Calorie data · Grains← All foods

How many calories in
oatmeal?

Cooked oatmeal is 71 calories per 100g, but the standard half-cup of dry oats (40g) lands at 150 calories — that's the number on most labels. Oats deliver a steady release of carbs and around 4g of fiber per dry serving, which is why they anchor most fitness breakfasts.

71
kcal · 100g (cooked)
2.5g
Protein
12g
Carbs
1.5g
Fat
Appears inLow-Fat Foods
Servings

Common serving sizes.

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

Serving
Calories
Protein
1 cup, cooked (234g)
166 kcal
5.8g
1/2 cup, dry (40g)
150 kcal
5.3g
1 packet, instant (28g)
100 kcal
3.5g
Track this food

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FAQ

Quick answers.

How many calories in oatmeal?

Oatmeal has approximately 71 calories per 100g (cooked). A typical serving — 1 cup, cooked (234g) — comes in at 166 calories.

How much protein is in oatmeal?

2.5g of protein per 100g (cooked). That puts oatmeal at roughly 3.5g of protein per 100 calories — a useful lens when comparing to other grains sources.

How do I log oatmeal 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 oatmeal good for weight loss?

It depends on your overall calorie target. Oatmeal is naturally low-calorie at 71 kcal per 100g (cooked), so it's easy to fit into a deficit.