How many grams are in 1 cup of all-purpose flour?
A practical kitchen average is 120 grams for 1 level cup of all-purpose flour.
Flour converters
Cups to Grams Flour Converter
Use this when a recipe is written in cups but you want the steadier results that come from baking by weight.
180
grams
Based on common cup weights. Actual results may vary slightly from one flour and measuring style to another.
Common flour conversions
| Cups | Grams (g) |
|---|---|
| 1/4 cup | 30 g |
| 1/2 cup | 60 g |
| 3/4 cup | 90 g |
| 1 cup | 120 g |
| 1 1/2 cups | 180 g |
| 2 cups | 240 g |
Notes about measurement method
- Flour type matters. All-purpose flour weighs less than bread flour and more than cake flour.
- Spoon-and-level gives a lighter cup than scooping directly from the bag.
- Sifted and unsifted flour can differ enough to change the result in baking.
- Humidity and brand differences make small weight shifts normal.
When flour conversions drift
The biggest source of error is not the chart. It is the way the cup gets filled. Scoop straight from the bag and the flour compresses. Spoon it in gently and the same cup lands much closer to the published weight.
If a dough feels stiff even though you followed the conversion, check the flour type first, then the measuring style. Bread flour and whole wheat flour usually need their own expectations.
Common questions
Why do flour conversions vary from site to site?
Different sites may use different cup-packing assumptions, flour types, or testing methods.