Convert cups to grams for common cooking and baking ingredients like flour, sugar, butter, milk, water, rice, oats, cocoa, honey, oil, and more. Use this converter when a recipe lists cups but you want a more accurate weight in grams.
All-purpose flour:
1 US cup ≈ 120 grams
Granulated sugar:
1 US cup ≈ 200 grams
Butter:
1 US cup ≈ 227 grams
Water:
1 US cup ≈ 236.59 grams
Cups to grams conversions are useful for baking, cooking, international recipes, meal prep, food tracking, ingredient scaling, flour measurements, sugar measurements, butter conversions, and improving recipe consistency.
Use this converter as a practical estimate. Exact weights can vary by brand, packing, sifting, humidity, and how the ingredient is measured.
Your result estimates the weight of the selected ingredient based on the number of cups entered. The converter also displays grams, ounces, pounds, kilograms, milliliters, tablespoons, and teaspoons for quick recipe reference.
Unlike simple weight conversions, cups to grams is ingredient-specific. One cup of flour does not weigh the same as one cup of sugar, butter, milk, or oil.
It depends on the ingredient. A US cup of water is about 236.59 grams, flour is about 120 grams, sugar is about 200 grams, and butter is about 227 grams.
One US cup of all-purpose flour is commonly estimated at about 120 grams.
One US cup of granulated sugar is commonly estimated at about 200 grams.
One US cup of butter is about 227 grams.
Cups measure volume and grams measure weight. Different ingredients have different densities, and packing or scooping can change the weight.