How many calories are in oatmeal: nutrition facts table

How many calories in oatmeal per 100 grams

It's important not to confuse dry oats with cooked porridge. Dry oat flakes have roughly 350–380 kcal per 100 grams — that's a concentrated product. But what ends up in your bowl is cooked porridge, where water or milk is added to the oats, so its calories per 100 grams are noticeably lower.

Porridge made with water and no extras is about 70–90 kcal per 100 grams of the cooked dish. Porridge made with milk (2.5%) is about 100–130 kcal per 100 grams. These are ballpark figures, not exact values: it all depends on how many oats went into your serving, what you cooked them with, and what you added on top.

Oatmeal nutrition facts (approximate)

Approximate values for plain oat porridge with no sugar or butter added:

• dry oats, 100 g: ≈370 kcal, protein ≈12 g, fat ≈7 g, carbs ≈62 g;
• a 50 g serving of dry oats (for one bowl): ≈185 kcal;
• a 250 g bowl of porridge made with water: ≈200–220 kcal;
• a 250 g bowl of porridge made with 2.5% milk: ≈300–340 kcal;
• porridge with banana, a spoon of honey and a handful of nuts: +150–250 kcal on top.

What the calories depend on

The main factors that move the number up or down:

• water or milk — milk (especially full-fat) noticeably raises the calories and fat;
• the amount of oats per serving — a heaped portion instead of a standard 40–50 g easily adds 100–150 kcal;
• sugar, honey, jam, condensed milk — quickly add dozens of calories per spoon;
• butter — a pat of butter in the bowl adds about 50–75 kcal;
• toppings — banana, nuts, seeds and dried fruit are healthy but noticeably calorie-dense.

Why oatmeal is convenient for tracking your diet

Oatmeal is popular for a reason: complex carbs and fiber keep you full longer, and porridge made with water is fairly light. That makes it a convenient breakfast base that's easy to fit into your daily calorie target.

To keep the serving light, cook it with water or diluted milk, measure out the oats (40–50 g per serving is a good rule of thumb), and go easy on sweeteners and calorie-dense toppings. That way a filling breakfast doesn't turn into a hidden 500+ kcal.

How to measure your own serving

Since the base, amount of oats and toppings differ for everyone, the most accurate numbers come from your actual bowl. Photograph your oatmeal in Calvero: the service estimates calories and macros from the picture, and if something is off with the milk or toppings, correct it in words (“with milk”, “with banana and honey”, “large serving”) and the count updates.

You can track it in your browser or right inside Telegram. There is a free trial with several analyses — no card required.