45 Grams to Cups
45 grams of all-purpose flour is about ⅜ cup, but 45 g of sugar is ¼ cup and 45 g of butter is ¼ cup. Pick your ingredient below for the exact answer.
45 g of all-purpose flour = ⅜ cup (0.36 exactly)
How many cups is 45 grams?
It depends on what you are measuring. Grams measure weight and cups measure volume, so a light ingredient like flour fills more of the cup than a heavy one like honey. Here is 45 g of the most common baking ingredients in US cups.
| Ingredient | 45 g in cups | Decimal cups | Tablespoons |
|---|---|---|---|
| Flour | ⅜ cup | 0.36 | 5 ¾ tbsp |
| Bread flour | ⅜ cup | 0.35 | 5 ⅔ tbsp |
| Cake flour | ⅜ cup | 0.39 | 6 ⅓ tbsp |
| Almond flour | ½ cup | 0.47 | 7 ½ tbsp |
| Sugar | ¼ cup | 0.23 | 3 ⅝ tbsp |
| Brown sugar | ¼ cup | 0.20 | 3 ¼ tbsp |
| Powdered sugar | ⅜ cup | 0.38 | 6 tbsp |
| Butter | ¼ cup | 0.20 | 3 ⅛ tbsp |
| Vegetable oil | ¼ cup | 0.21 | 3 ⅓ tbsp |
| Water | ¼ cup | 0.19 | 3 tbsp |
| Milk | ⅛ cup | 0.18 | 3 tbsp |
| Heavy cream | ¼ cup | 0.19 | 3 tbsp |
| Greek yogurt | ⅛ cup | 0.18 | 3 tbsp |
| Honey | ⅛ cup | 0.13 | 2 ⅛ tbsp |
| White rice | ¼ cup | 0.24 | 3 ⅞ tbsp |
| Rolled oats | ½ cup | 0.50 | 8 tbsp |
| Cocoa powder | ½ cup | 0.53 | 8 ½ tbsp |
| Chocolate chips | ¼ cup | 0.26 | 4 ¼ tbsp |
| Peanut butter | ⅛ cup | 0.17 | 2 ¾ tbsp |
| Cream cheese | ¼ cup | 0.19 | 3 ⅛ tbsp |
How to measure 45 grams without a scale
For flour and other powders, spoon the ingredient into a dry cup and level it off. For 45 g of flour that means filling cups to about ⅜ cup, or 5 ¾ level tablespoons. For liquids like water or milk, 45 g is close to 45 ml, so a measuring jug works well.
Example: 45 g flour ÷ 125 g = 0.36 cups
Frequently asked questions
How many cups is 45 grams of flour?
45 grams of all-purpose flour is about ⅜ cup (0.36 cups), spooned and leveled.
How many cups is 45 grams of sugar?
45 grams of granulated sugar is about ¼ cup (0.23 cups).
How many cups is 45 grams of butter?
45 grams of butter is about ¼ cup, or 3 ⅛ tablespoons.
How many cups is 45 grams of water?
45 grams of water is about ¼ cup (45 ml is about 0.19 cups).
Related conversions
Last updated: November 2026. Values use the US cup (236.6 ml) and the spoon-and-level method for dry ingredients.