Click one of the common conversions below or use our calculator to convert cups to grams for common ingredients.
Most Common Cups to Grams Conversions
(Click to jump to section)
Specific Cups to Grams Conversions
2 cups to grams
2 cups to grams depends on the ingredient. For common baking ingredients, 2 cups is about 240 grams of all-purpose flour, 400 grams of granulated sugar, 454 grams of butter, or 473.2 grams of water.
This is a common recipe amount for cakes, cookies, pancakes, and bread mixes.
1.5 cups to grams
1.5 cups to grams is about 180 grams of all-purpose flour, 300 grams of granulated sugar, 340.5 grams of butter, or 354.9 grams of water.
This amount shows up often in muffins, brownies, and medium-size baking recipes.
3 cups to grams
3 cups to grams is about 360 grams of all-purpose flour, 600 grams of granulated sugar, 681 grams of butter, or 709.8 grams of water.
Three cups is a useful conversion for larger cake batters, bread doughs, and family-size recipes.
4 cups to grams
4 cups to grams is about 480 grams of all-purpose flour, 800 grams of granulated sugar, 908 grams of butter, or 946.4 grams of water.
Four cups is a helpful benchmark when scaling up flour, sugar, or liquid-heavy recipes.
2.5 cups to grams
2.5 cups to grams is about 300 grams of all-purpose flour, 500 grams of granulated sugar, 567.5 grams of butter, or 591.5 grams of water.
This conversion is useful for recipes that sit between 2 cups and 3 cups of an ingredient.
3/4 cups to grams
3/4 cups to grams is about 90 grams of all-purpose flour, 150 grams of granulated sugar, 170.3 grams of butter, or 177.5 grams of water.
Three-quarters of a cup is a very common measurement in cookies, frostings, and quick breads.
6 cups to grams
6 cups to grams is about 720 grams of all-purpose flour, 1,200 grams of granulated sugar, 1,362 grams of butter, or 1,419.6 grams of water.
Six cups usually comes up in large-batch baking, party recipes, and bread production.
5 cups to grams
5 cups to grams is about 600 grams of all-purpose flour, 1,000 grams of granulated sugar, 1,135 grams of butter, or 1,183 grams of water.
Five cups is a useful scaled-up conversion for batters, fillings, and larger prep work.
2/3 cups to grams
2/3 cups to grams is about 80 grams of all-purpose flour, 133.3 grams of granulated sugar, 151.3 grams of butter, or 157.7 grams of water.
Two-thirds cup is a common fractional amount in cookies, pie fillings, and sauce recipes.
1/4 cups to grams
1/4 cups to grams is about 30 grams of all-purpose flour, 50 grams of granulated sugar, 56.8 grams of butter, or 59.2 grams of water.
Quarter-cup conversions are helpful for small additions, toppings, and partial-batch baking.
How Cups to Grams Conversion Works
To convert cups to grams, multiply the number of cups by the number of grams in 1 US cup of that ingredient:
grams = cups à grams per cup
To convert the other way, divide the gram amount by the grams-per-cup value:
cups = grams ÷ grams per cup
This is why a cups to grams answer changes depending on the ingredient. A cup of flour does not weigh the same as a cup of sugar, butter, oats, honey, or water.
Common Ingredient Weights per US Cup
| Ingredient | Approximate Grams per US Cup | Why It Matters for Conversion |
|---|---|---|
| All-Purpose Flour | 120 g | A common baking reference, so 1 cup of flour is often treated as about 120 grams. |
| Granulated Sugar | 200 g | Much denser than flour, so 1 cup weighs significantly more. |
| Brown Sugar (Packed) | 220 g | Packing the sugar increases density and changes the cup-to-gram result. |
| Powdered Sugar | 120 g | Lighter and airier than granulated sugar, so volume-based conversions differ a lot. |
| Butter | 227 g | Useful when converting between cups, grams, and butter sticks. |
| Water | 236.6 g | A helpful baseline because 1 US cup is about 236.6 milliliters. |
| Rolled Oats | 90 g | Oats are lighter than many baking staples, so cups convert to fewer grams. |
| Honey | 340 g | Honey is very dense, so even a small cup amount weighs a lot. |
| Cocoa Powder | 85 g | Often used in smaller amounts, where accurate conversions can noticeably affect recipes. |
Why Ingredient-Specific Cups to Grams Conversions Matter
Cups measure volume, while grams measure weight. Because of that, there is no single universal answer to searches like 2 cups to grams, 3/4 cups to grams, or 1/4 cups to grams unless the ingredient is named.
That matters most in baking. Flour, sugar, butter, water, and oats all have different densities, so 1 cup of each ingredient weighs a different amount. Using an ingredient-specific cups to grams converter gives more accurate results and helps improve texture, moisture, structure, and consistency in your recipes.
Better Baking Measurement Tips
- Use a kitchen scale whenever possible for the most accurate results.
- Choose the correct ingredient before converting cups to grams.
- Use US cups consistently, since cup sizes can vary by country.
- Spoon and level flour unless the recipe specifically says to scoop it.
- Pack brown sugar only when the recipe calls for packed brown sugar.
- Remember that sifted, aerated, or loosely filled ingredients can weigh less per cup.
For the best results, use this page for ingredient-specific cups to grams conversion rather than assuming every cup weighs the same. That is the simplest way to get more accurate baking conversions for flour, sugar, butter, water, and other common ingredients.