400g Oats in Cups
400 grams of rolled oats is 4½ cups — 90g per US cup. Granola and batch flapjacks use weights like this, where oats are usually the base and everything else is scaled against them.
How many cups is 400g of rolled oats?
400 grams of rolled oats equals:
Measuring by hand? That is 4 cups + 7 tablespoons. It is about 80% of a 500 g bag of oats.
Rolled oats are flaky and full of air, so they take up far more cup volume than the same weight of flour or sugar. Do not press them down.
Grams to Cups Converter
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Dedicated conversion guides use the default US customary cup.
Applies to this page only — the database value (90g per US cup) is unchanged.
400 grams of Oats is about 4½ cups, using a 236.588 millilitre cup at 90 grams per cup.
400g of rolled oats vs other ingredients
Grams measure weight and cups measure volume, so the same 400 grams fills a different amount of cup for every ingredient:
| Ingredient | 400g in cups | g per cup |
|---|---|---|
| Oats | 4½ cups | 90 |
| All-Purpose Flour | 3¼ cups | 125 |
| Granulated Sugar | 2 cups | 200 |
| Butter | 1¾ cups | 227 |
See all 400g conversions on the 400 grams to cups chart.
Nearby rolled oats amounts
| Grams of rolled oats | Cups | Tablespoons |
|---|---|---|
| 350g | 3⅞ cups | 63 tbsp |
| 360g | 4 cups | 64 tbsp |
| 375g | 4⅛ cups | 67 tbsp |
| 390g | 4⅓ cups | 70 tbsp |
| 410g | 4½ cups | 73 tbsp |
| 420g | 4⅔ cups | 75 tbsp |
| 450g | 5 cups | 80 tbsp |
| 454g | 5 cups | 81 tbsp |
Full ladder on the oats grams to cups chart.
Frequently Asked Questions
400 grams of rolled oats is 4½ cups. In kitchen measures that is 4 cups + 7 tablespoons, worked out from 90 grams per US cup.
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