Conversion Reference
Get quick rounded cup conversions for 400 grams across common ingredients used in cooking and baking.
400 grams is not one fixed cup amount for every ingredient. In practical US cup references, 400 grams is about 3.2 cups of all-purpose flour, 2 cups of granulated sugar, and 1.76 cups of butter.
That is why a grams-to-cups answer only works when the ingredient is clearly identified first.
| Ingredient | Mass | Cups |
|---|---|---|
| All-purpose flour | 400 g | About 3.2 cups |
| Granulated sugar | 400 g | About 2 cups |
| Butter | 400 g | About 1.76 cups |
| Milk | 400 g | About 1.64 cups |
| Rice (raw) | 400 g | About 2.16 cups |
| Oats | 400 g | About 4.44 cups |
| Cocoa powder | 400 g | About 4.04 cups |
| Brown sugar | 400 g | About 1.82 cups |
| Powdered sugar | 400 g | About 3.33 cups |
| Almond flour | 400 g | About 4.17 cups |
Grams measure weight, while cups measure volume. Because flour, sugar, butter, oats, and rice do not all fill space in the same way, the cup result changes even when the gram amount stays the same.
This page works best as a quick kitchen reference. When recipe accuracy matters, weighing the ingredient directly is still the more dependable choice.
No. 400 grams stays the same weight, but the cup value changes by ingredient because each ingredient has a different density.
Using a practical US cup reference, 400 grams of all-purpose flour is about 3.2 cups.
Using a practical US cup reference, 400 grams of granulated sugar is about 2 cups.
Use the full grams-to-cups calculator for any amount, ingredient, and cup standard.