Flour Cups to Grams Converter
Convert all-purpose flour between cups and grams instantly, either direction.
1 cup of all-purpose flour = 120g (spooned into the cup and leveled off, not scooped and packed)
Type in either box — the other updates automatically.
How This Conversion Works
Grams = cups × 120 (the standard weight of 1 cup of all-purpose flour, spooned and leveled). Cups = grams ÷ 120.
Worked example
A recipe calls for 250g of flour, but your measuring cups are in cups.
250 ÷ 120 = 2.0833 cups
That's about 2 cups plus 1 tablespoon (0.0833 cups ≈ 1.3 tablespoons).
Frequently Asked Questions
How many grams is a cup of flour?
1 cup of all-purpose flour is 120 grams, when spooned into the cup and leveled off rather than scooped and packed. Scooping directly from the bag compacts the flour and can add 20-30 grams, which is why recipes that care about precision specify the spoon-and-level method.
Why does flour weight vary between recipes?
Different brands, flour types (bread flour vs. all-purpose vs. cake flour), and measuring techniques all shift the real weight per cup. 120g/cup is the standard baking-reference value for all-purpose flour measured by spooning and leveling — the most common convention in US recipes.
Should I use a kitchen scale instead of cups?
For baking specifically, yes if precision matters — weight doesn't vary with how tightly the flour is packed, so it's more consistent than volume measurement. This converter helps translate a cup-based recipe to weight, or a weight-based recipe back to cups.
All-Purpose Flour Conversion Chart
Every value below uses 1 cup of all-purpose flour = 120g (spooned into the cup and leveled off, not scooped and packed). Cups are rounded to two decimals; 0.33 is a third of a cup, 0.67 is two-thirds.
| Grams of all-purpose flour | Cups |
|---|---|
| 50 grams | 0.42 cups |
| 100 grams | 0.83 cups |
| 150 grams | 1.25 cups |
| 200 grams | 1.67 cups |
| 250 grams | 2.08 cups |
| 300 grams | 2.5 cups |
| 400 grams | 3.33 cups |
| 500 grams | 4.17 cups |
| Cups of all-purpose flour | Grams |
|---|---|
| 1/4 cup | 30 g |
| 1/3 cup | 40 g |
| 1/2 cup | 60 g |
| 2/3 cup | 80 g |
| 3/4 cup | 90 g |
| 1 cup | 120 g |
| 1 1/2 cups | 180 g |
| 2 cups | 240 g |
| 3 cups | 360 g |