Cups to Grams Converter
One US cup of all-purpose flour weighs 125 grams, one cup of granulated sugar weighs 200 grams, and one cup of unsalted butter weighs 227 grams.
Use our interactive calculator below to perform instant conversions, inspect reference tables, and view worked formulas for precision baking.
Cups to Grams Converter
Perform instant live conversions for cups to grams across 540+ baking ingredients.
Custom package weights override standard database densities for this session without altering official database records.
Mathematical Formula & Step-by-Step Example
Worked Step-by-Step Example
To convert 1.5 cups of packed brown sugar (density 220g/cup): 1.5 cups × 220g/cup = 330 grams.
Cups to Grams Converter Reference Matrix
Cups to Grams Converter pre-calculated values for common recipe amounts.
| Input Amount (cups) | Converted Result (grams) | Culinary Usage Note |
|---|---|---|
| ¼ cup | 31.25g (AP Flour) / 50.00g (Sugar) | Standard kitchen recipe portion |
| ⅓ cup | 41.67g (AP Flour) / 66.67g (Sugar) | Standard kitchen recipe portion |
| ½ cup | 62.50g (AP Flour) / 100.00g (Sugar) | Standard kitchen recipe portion |
| ⅔ cup | 83.33g (AP Flour) / 133.33g (Sugar) | Standard kitchen recipe portion |
| ¾ cup | 93.75g (AP Flour) / 150.00g (Sugar) | Standard kitchen recipe portion |
| 1 cup | 125.00g (AP Flour) / 200.00g (Sugar) | Standard kitchen recipe portion |
| 1 ¼ cups | 156.25g (AP Flour) / 250.00g (Sugar) | Standard kitchen recipe portion |
| 1 ⅓ cups | 166.67g (AP Flour) / 266.67g (Sugar) | Standard kitchen recipe portion |
| 1 ½ cups | 187.50g (AP Flour) / 300.00g (Sugar) | Standard kitchen recipe portion |
| 1 ⅔ cups | 208.33g (AP Flour) / 333.33g (Sugar) | Standard kitchen recipe portion |
| 1 ¾ cups | 218.75g (AP Flour) / 350.00g (Sugar) | Standard kitchen recipe portion |
| 2 cups | 250.00g (AP Flour) / 400.00g (Sugar) | Standard kitchen recipe portion |
| 2 ½ cups | 312.50g (AP Flour) / 500.00g (Sugar) | Standard kitchen recipe portion |
| 3 cups | 375.00g (AP Flour) / 600.00g (Sugar) | Standard kitchen recipe portion |
| 3 ½ cups | 437.50g (AP Flour) / 700.00g (Sugar) | Standard kitchen recipe portion |
| 4 cups | 500.00g (AP Flour) / 800.00g (Sugar) | Standard kitchen recipe portion |
| 4 ½ cups | 562.50g (AP Flour) / 900.00g (Sugar) | Standard kitchen recipe portion |
| 5 cups | 625.00g (AP Flour) / 1000.00g (Sugar) | Standard kitchen recipe portion |
| 6 cups | 750.00g (AP Flour) / 1200.00g (Sugar) | Standard kitchen recipe portion |
| 8 cups | 1000.00g (AP Flour) / 1600.00g (Sugar) | Standard kitchen recipe portion |
20-Ingredient Density Variance Comparison Table
Demonstrating how different ingredient densities change the volume and mass relationships for this conversion.
| Ingredient Name | Category | US Cup Density | Conversion Output |
|---|---|---|---|
| All-Purpose Flour | flours-and-starches | 125g / US Cup | 125g (125.0g) |
| Bread Flour | flours-and-starches | 130g / US Cup | 130g (130.0g) |
| Cake Flour | flours-and-starches | 115g / US Cup | 115g (115.0g) |
| Whole Wheat Flour | flours-and-starches | 120g / US Cup | 120g (120.0g) |
| Almond Flour | flours-and-starches | 112g / US Cup | 112g (112.0g) |
| Granulated Sugar | sugars-and-sweeteners | 200g / US Cup | 200g (200.0g) |
| Packed Brown Sugar | sugars-and-sweeteners | 220g / US Cup | 220g (220.0g) |
| Powdered Sugar (Confectioners) | sugars-and-sweeteners | 120g / US Cup | 120g (120.0g) |
| Butter (Softened / Sticks) | fats-and-oils | 227g / US Cup | 227g (227.0g) |
| Vegetable / Canola Oil | fats-and-oils | 218g / US Cup | 218g (218.0g) |
| Olive Oil | fats-and-oils | 216g / US Cup | 216g (216.0g) |
| Water (Pure / Filtered) | liquids | 237g / US Cup | 237g (237.0g) |
| Whole Milk (3.25%) | dairy-and-eggs | 245g / US Cup | 245g (245.0g) |
| Heavy Whipping Cream (36%) | dairy-and-eggs | 238g / US Cup | 238g (238.0g) |
| Rolled Oats (Old-Fashioned) | grains-and-rice | 90g / US Cup | 90g (90.0g) |
| Uncooked White Rice | grains-and-rice | 185g / US Cup | 185g (185.0g) |
| Unsweetened Cocoa Powder | chocolate-and-cocoa | 85g / US Cup | 85g (85.0g) |
| Honey | sugars-and-sweeteners | 340g / US Cup | 340g (340.0g) |
| Pure Maple Syrup | sugars-and-sweeteners | 322g / US Cup | 322g (322.0g) |
| Cornstarch (Corn Flour) | flours-and-starches | 112g / US Cup | 112g (112.0g) |
Understanding Cups to Grams Converter in Professional Baking
Translating cups to grams is the single most effective way to eliminate baking failures. Volume measurements are notoriously variable because humidity, storage settling, and scooping technique alter how densely ingredients pack into a cup. Weighing out ingredients on a digital kitchen scale guarantees reproducible crusts, tender cake crumbs, and balanced doughs.
Our converter maps volumetric cup fractions directly to mass using verified density metrics. Whether you are working with delicate cake flour, heavy whole wheat, viscous honey, or solid shortening, entering the cup volume yields instant scale-ready gram measurements.
When converting full recipes, keep in mind that liquids and dry ingredients behave differently. Liquids maintain fixed density (water is always 236.59g per US cup), whereas dry powders change density based on sifting or packing. Using our ingredient-specific selector guarantees exact mass matching.
Frequently Asked Questions
Why does 1 cup of flour weigh different amounts in different recipes?
Different sources use different cup weight baselines. King Arthur specifies 120g per cup, USDA uses 125g, and Gold Medal recommends 128g. Our database defaults to the 125g standard.
How many grams are in 1 cup of butter?
One standard US cup of butter weighs 227 grams, which is equal to 2 standard sticks or 8 ounces.
Should I weigh brown sugar packed or loose?
Standard baking recipes expect brown sugar to be firmly packed into the cup measure, which yields approximately 220 grams per cup.
What is the fastest way to convert American recipes for European scales?
Use this cups to grams converter to look up each ingredient in your recipe and zero out your digital kitchen scale as you add each weight in sequence.
Related Culinary Calculators & Tools
Calculations on this page are strictly audited against official USDA bulk density metrics, NIST physical constants, and professional baking references. Reviewed by master bakers for culinary accuracy and kitchen scale safety.