Cooking conversion
Cups to Grams Converter by Ingredient
A cup tells you how much space an ingredient fills. Grams tell you what it weighs. Pick the ingredient so the conversion uses the right density.
1 US cup of all-purpose flour 125 g
125g
= 4.41 oz
All-purpose flour · 125 g per US cup
Quick reference
Common cups to grams conversions
These values use all-purpose flour. Change the ingredient in the converter for sugar, butter, oats, and other foods.
| US cups | grams |
|---|---|
| 1/4 | 31.25 g |
| 1/3 | 41.67 g |
| 1/2 | 62.5 g |
| 3/4 | 93.75 g |
| 1 | 125 g |
| 1 1/2 | 187.5 g |
| 2 | 250 g |
Good to know
Why cups do not have one gram value
US cups measure volume. Grams measure mass, so the answer changes with density. One cup of flour contains more air than one cup of sugar and weighs less.
Ingredient form matters too. Packed, sifted, chopped, and whole ingredients can fill the same cup differently. Select the closest form before using the result in your recipe.
Common questions
Questions, answered.
How many grams are in a cup?
There is no single answer because a cup measures volume and grams measure mass. One US cup of all-purpose flour is about 125 grams in this catalog, while other ingredients have different weights.
How do I convert cups to grams?
Enter the number of cups, choose the ingredient and its form, and read the gram result. The converter applies that ingredient’s density automatically.
Does this use US cups or metric cups?
The page starts with a US cup, equal to about 236.6 mL. Choose Metric cups in the unit picker when a recipe uses 250 mL cups.
Can I convert grams back to cups?
Yes. Use the swap button to reverse the same ingredient-aware conversion.
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