Sugar Grams to Cups
Converting sugar from grams to cups varies depending on crystal size, molasses moisture, and packing technique. Knowing how many grams in a cup of sugar ensures your cakes, cookies, and frostings achieve perfect sweetness and texture. White granulated sugar weighs 200g per cup, packed brown sugar weighs 220g, and airy powdered sugar weighs 120g per cup.
Sugar Grams to Cups Calculator
Calculate volume and weight conversions for granulated, brown, powdered, coconut, and raw sugars.
Custom package weights override standard database densities for this session without altering official database records.
Select Your Sugar Variety
Explore detailed conversion guides and density charts for specific sugar types:
Sugar Grams to Cups Master Comparison Table
Exact weight conversions for 1 US Legal Cup (240ml), Metric Cup (250ml), and UK Imperial Cup (284ml).
| Sugar Variety | 1 US Cup (g) | Metric Cup (g) | Imperial Cup (g) | Measuring Technique | Dedicated Guide | Reverse Tool |
|---|---|---|---|---|---|---|
| Granulated Sugar | 200 g | 211 g | 240 g | Granulated Sugar Guide→ | Cups to Grams→ | |
| Packed Brown Sugar | 220 g | 232 g | 264 g | Packed Brown Sugar Guide→ | Cups to Grams→ | |
| Light/Unpacked Brown Sugar | 180 g | 190 g | 216 g | Light/Unpacked Brown Sugar Guide→ | Cups to Grams→ | |
| Powdered Sugar (Confectioners) | 120 g | 127 g | 144 g | Powdered Sugar (Confectioners) Guide→ | Cups to Grams→ | |
| Raw Sugar (Turbinado) | 210 g | 222 g | 252 g | Raw Sugar (Turbinado) Guide→ | Cups to Grams→ | |
| Coconut Sugar | 192 g | 203 g | 231 g | Coconut Sugar Guide→ | Cups to Grams→ | |
| Powdered Erythritol (Swerve Confectioners) | 160 g | 169 g | 192 g | Powdered Erythritol (Swerve Confectioners) Guide→ | Cups to Grams→ |
Common Cup Fractions to Grams for Sugar
Quick lookups for standard recipe amounts: 1/4 cup, 1/3 cup, 1/2 cup, 3/4 cup, and 1 cup sugar in grams.
| Cup Volume | Granulated Sugar (g) | Packed Brown Sugar (g) | Loose Brown Sugar (g) | Powdered Sugar (g) |
|---|---|---|---|---|
| 1/4 Cup | 50 g | 55 g | 45 g | 30 g |
| 1/3 Cup | 67 g | 73 g | 60 g | 40 g |
| 1/2 Cup | 100 g | 110 g | 90 g | 60 g |
| 2/3 Cup | 133 g | 147 g | 120 g | 80 g |
| 3/4 Cup | 150 g | 165 g | 135 g | 90 g |
| 1 Cup | 200 g | 220 g | 180 g | 120 g |
| 1 1/2 Cups | 300 g | 330 g | 270 g | 180 g |
| 2 Cups | 400 g | 440 g | 360 g | 240 g |
Packed vs Unpacked Brown Sugar: The 40-Gram Difference
When a recipe calls for brown sugar, measuring technique changes the weight dramatically:
Packed Brown Sugar (220g / Cup)
Standard US baking recipes assume brown sugar is firmly packed into the cup using the back of a spoon until it holds the mold shape of the cup when inverted. 1 cup packed brown sugar weighs 220 grams (110g for 1/2 cup sugar in grams).
Loose / Unpacked Brown Sugar (180g / Cup)
If brown sugar is spooned loosely into a cup without pressing down, air gaps remain between sticky syrup granules. 1 cup loose brown sugar weighs only 180 grams, a 40g deficit that reduces sweetness and moisture in cookies.
Measuring Differences: Powdered, Raw & Coconut Sugars
Ultra-fine confectioners sugar contains cornstarch and trapped air. Un-sifted powdered sugar weighs 120g per cup. Sifting before measuring drops the weight to ~100g.
Standard white sugar crystals pour cleanly into measuring cups without compaction. 1 cup sugar in grams equals 200g, making 1/2 cup sugar equal to 100g.
Coconut sugar has a mild caramel flavor (192g/cup). Coarse turbinado raw sugar crystals pack tightly at 210g per cup.
Popular Sugar Grams to Cups
Density-accurate volume guides for standard granulated sugar recipe weights:
Popular Honey Grams to Cups
Weight-to-volume conversions for pure honey (USDA density: 340g / US cup):
Sugar Conversion Tools & Navigation Links
Access complimentary conversion utilities and detailed sugar guides:
Frequently Asked Questions: Sugar Grams to Cups
How many grams in a cup of sugar?
1 US Legal Cup of white granulated sugar weighs exactly 200 grams. Packed brown sugar weighs 220 grams per cup, loose brown sugar weighs 180 grams, and powdered sugar weighs 120 grams per cup.
What is 1 cup sugar in grams?
For standard white granulated sugar, 1 cup equals 200 grams. For packed brown sugar, 1 cup equals 220 grams. For powdered sugar, 1 cup equals 120 grams.
What is 1/2 cup sugar in grams?
1/2 cup of granulated sugar is 100 grams. 1/2 cup of packed brown sugar is 110 grams, and 1/2 cup of powdered sugar is 60 grams.
Why does brown sugar need to be packed when measuring?
Brown sugar is coated in liquid molasses syrup, creating air pockets between granules. Packing brown sugar firmly expels trapped air, ensuring you measure the true target weight of 220g per cup assumed in standard US baking recipes.
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