90 Grams to Cups: The Answer Depends on the Ingredient
90 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
90g equals 3/4 cup all-purpose flour, but 1/2 cup granulated sugar.
If your recipe just says "90 grams to cups," choose the ingredient first. That is the difference between a useful conversion and a dry cake.
90g to Cups by Ingredient
| Ingredient | Spoon & Level | Dip & Sweep | Sifted |
|---|---|---|---|
| 90g all-purpose flour | 3/4 cup | 2/3 cup | 3/4 cup |
| 90g granulated sugar | 1/2 cup | 1/3 cup | 1/2 cup |
| 90g brown sugar (packed) | 1/3 cup | 1/3 cup | 1/2 cup |
| 90g powdered sugar | 3/4 cup | 2/3 cup | 3/4 cup |
| 90g butter | 1/3 cup | 1/3 cup | 1/2 cup |
| 90g peanut butter | 1/3 cup | 1/3 cup | 1/3 cup |
| 90g bread flour | 2/3 cup | 2/3 cup | 3/4 cup |
| 90g cake flour | 3/4 cup | 2/3 cup | 3/4 cup |
| 90g whole wheat flour | 3/4 cup | 2/3 cup | 3/4 cup |
| 90g almond flour | 3/4 cup | 3/4 cup | 1 1/8 cups |
| 90g cocoa powder | 3/4 cup | 3/4 cup | 1 cup |
| 90g rolled oats | 1 cup | 3/4 cup | 1 1/8 cups |
| 90g whole milk | 1/3 cup | 1/3 cup | 1/2 cup |
| 90g heavy cream | 1/3 cup | 1/3 cup | 1/2 cup |
| 90g honey | 1/4 cup | 1/4 cup | 1/3 cup |
| 90g olive oil | 1/2 cup | 1/3 cup | 1/2 cup |
| 90g water | 1/3 cup | 1/3 cup | 1/3 cup |
| 90g cooked white rice | 1/2 cup | 1/2 cup | 1/2 cup |
Popular Nearby Conversions
Frequently Asked Questions
90 grams can be a different number of cups depending on the ingredient. For example, 90g all-purpose flour is 3/4 cup, while 90g granulated sugar is 1/2 cup.
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.