Grains & legumes

Oatmeal

Oatmeal consists of flattened oat grains cooked into porridge with water or milk. It's also added to baking, granola, and smoothies.

379 kcal per 100 g

Nutrition per 100 g

379 kcal

Protein13.2 g
Fat6.5 g
Carbs67.7 g
Fiber10.1 g

Source: USDA FoodData Central, 2026-09-21. Per 100 g of product.

How many grams in a measure

Approximate weights of common measures. The exact figure depends on the product and how it is packed.

  • 200 ml cup 68.8 g
  • 250 ml cup 86 g
  • tablespoon (15 ml) 5.2 g
  • teaspoon (5 ml) 1.7 g
  • 0.5 l jar 172 g

Good to know: Oatmeal

Take oats seriously — they are not a boring breakfast filler; they're a cereal grain, a true relative of wheat and barley, offering a comforting, chewy bite once cooked. The flakes you buy are steamed and rolled, and that rolling is what makes them cook so fast. Rolling cracks the grain open and flattens the starch inside, so water gets in quickly and the starch swells and softens without a long simmer. That's the whole trick — mechanical, not magical.

Choose oats by touch and smell. Good flakes feel dry, springy, almost powdery at the edges, and smell faintly sweet, like fresh straw. If they smell musty or feel soft and clumped, leave them — moisture got in before you did.

Some people say thick, coarse flakes are "more natural" and therefore just the same as thin ones, only slower. No — thickness changes more than the clock. Thick flakes keep more of the grain's structure intact, so they cook up firmer and chewier, with a heartier bite that thin, quick oats never give you. Believing they're interchangeable leads to a common mistake: people boil thick flakes for the same few minutes as thin ones and end up eating raw, chalky starch instead of a proper, silky porridge.

Questions and answers

How many grams of oatmeal are in a 200 ml cup?

200 ml cup of oatmeal weighs about 68.8 g.

How many grams of oatmeal are in a 250 ml cup?

250 ml cup of oatmeal weighs about 86 g.

How many grams of oatmeal are in a tablespoon (15 ml)?

tablespoon (15 ml) of oatmeal weighs about 5.2 g.

How many grams of oatmeal are in a teaspoon (5 ml)?

teaspoon (5 ml) of oatmeal weighs about 1.7 g.

How many grams of oatmeal are in a 0.5 l jar?

0.5 l jar of oatmeal weighs about 172 g.