420g Oats in Cups
420 grams of rolled oats is 4⅔ 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 420g of rolled oats?
420 grams of rolled oats equals:
Measuring by hand? That is 4 cups + 11 tablespoons. It is about 84% 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.
420 grams of Oats is about 4⅔ cups, using a 236.588 millilitre cup at 90 grams per cup.
420g of rolled oats vs other ingredients
Grams measure weight and cups measure volume, so the same 420 grams fills a different amount of cup for every ingredient:
| Ingredient | 420g in cups | g per cup |
|---|---|---|
| Oats | 4⅔ cups | 90 |
| All-Purpose Flour | 3⅜ cups | 125 |
| Granulated Sugar | 2⅛ cups | 200 |
| Butter | 1⅞ cups | 227 |
See all 420g conversions on the 420 grams to cups chart.
Nearby rolled oats amounts
| Grams of rolled oats | Cups | Tablespoons |
|---|---|---|
| 375g | 4⅛ cups | 67 tbsp |
| 390g | 4⅓ cups | 70 tbsp |
| 400g | 4½ cups | 71 tbsp |
| 410g | 4½ cups | 73 tbsp |
| 450g | 5 cups | 80 tbsp |
| 454g | 5 cups | 81 tbsp |
| 480g | 5⅓ cups | 86 tbsp |
| 500g | 5½ cups | 89 tbsp |
Full ladder on the oats grams to cups chart.
Frequently Asked Questions
420 grams of rolled oats is 4⅔ cups. In kitchen measures that is 4 cups + 11 tablespoons, worked out from 90 grams per US cup.
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