400 Grams to Cups: The Answer Depends on the Ingredient
400 grams to cups is not one universal number. Flour, sugar, butter, oats, water, and rice all fill a cup differently, so this page gives the comparison Google snippets usually skip.
Quick answer
400g equals 3 1/4 cups all-purpose flour, but 2 cups granulated sugar.
If your recipe just says "400 grams to cups," choose the ingredient first. That is the difference between a useful conversion and a dry cake.
400g to Cups by Ingredient
| Ingredient | Spoon & Level | Dip & Sweep | Sifted |
|---|---|---|---|
| 400g all-purpose flour | 3 1/4 cups | 2 3/4 cups | 3 3/4 cups |
| 400g granulated sugar | 2 cups | 1 2/3 cups | 2 1/3 cups |
| 400g brown sugar (packed) | 1 3/4 cups | 1 1/2 cups | 2 1/8 cups |
| 400g powdered sugar | 3 1/3 cups | 2 3/4 cups | 3 3/4 cups |
| 400g butter | 1 3/4 cups | 1 1/2 cups | 2 1/8 cups |
| 400g peanut butter | 1 1/2 cups | 1 1/2 cups | 1 1/2 cups |
| 400g bread flour | 3 1/8 cups | 2 2/3 cups | 3 2/3 cups |
| 400g cake flour | 3 2/3 cups | 3 1/8 cups | 4 1/4 cups |
| 400g whole wheat flour | 3 1/3 cups | 2 3/4 cups | 3 3/4 cups |
| 400g almond flour | 4 1/8 cups | 3 1/2 cups | 4 3/4 cups |
| 400g cocoa powder | 3 3/4 cups | 3 1/4 cups | 4 1/2 cups |
| 400g rolled oats | 4 1/2 cups | 3 3/4 cups | 5 1/4 cups |
| 400g whole milk | 1 2/3 cups | 1 1/3 cups | 1 3/4 cups |
| 400g heavy cream | 1 2/3 cups | 1 1/2 cups | 2 cups |
| 400g honey | 1 1/4 cups | 1 1/8 cups | 1 1/3 cups |
| 400g olive oil | 1 3/4 cups | 1 1/2 cups | 2 1/8 cups |
| 400g water | 1 2/3 cups | 1 2/3 cups | 1 2/3 cups |
| 400g cooked white rice | 2 1/2 cups | 2 1/3 cups | 2 1/2 cups |
Popular Nearby Conversions
Frequently Asked Questions
400 grams can be a different number of cups depending on the ingredient. For example, 400g all-purpose flour is 3 1/4 cups, while 400g granulated sugar is 2 cups.
Cups measure volume, while grams measure weight. Flour, sugar, butter, oats, and liquids have different densities, so the same gram weight fills a different cup volume.
Choose the exact ingredient first, then use the ingredient-specific conversion. Spoon & Level is the recommended method for dry baking ingredients.