Every cup weighs differently
Choose the closest ingredient and preparation. Flour and butter cannot share one conversion factor.
THE KITCHEN TOOLBOX / BAKING MEASUREMENTS
A cup of this.
How many grams?
Flour, sugar, butter, and more. Convert cups to grams—or grams back to cups—with the right ingredient in mind.
01 Choose your ingredient
Use the reference weight or enter the grams per cup given by your recipe or packaging.
02 Choose your conversion
Enter a decimal or fraction: 0.5, ½, 1/3, or 1 ½.
Which cup does this use?
These are US-recipe cup weight estimates from the source chart. They are not calibrated for a 250 mL metric cup. Follow your recipe’s stated gram weights when available.
03 Your converted amount
All-purpose flour
120grams
A guide, not an exact weight
Brand, packing, and measuring technique change the weight. Packed brown sugar and unsifted powdered sugar have their own entries. For precise baking, use a kitchen scale.
QUICK REFERENCE / SELECTED INGREDIENT
Your handy conversion chart
| Cups | Approx. grams |
|---|
Ingredient weight reference: King Arthur Baking’s Ingredient Weight Chart. Built-in values checked October 2026. Custom or edited weights are supplied by you.
Cups to grams. Grams to cups.
Switch direction to keep the same ingredient and amount. The unit changes; enter the quantity you want to convert.
Use your recipe’s weights first
This chart helps when weights are missing. A recipe’s own measurements are the best starting point.