Sugar Cups to Grams Converter
Volumetric cup to mass gram conversions across all sugar ingredients.
Direct Answer
Measuring sugar by volume yields different gram weights depending on ingredient density. One cup ranges from 120g for light items up to 220g for dense items.
Select your specific ingredient below to convert fractional and whole cup measurements directly into exact grams, ounces, and tablespoons.
Sugar Cup to Weight Calculator
Select any ingredient to convert cups into exact grams and ounces.
Custom package weights override standard database densities for this session without altering official database records.
Sugar Cup Weight Reference Table
Gram weights for ¼ cup, ½ cup, ¾ cup, and 1 cup across all sugar ingredients:
| Ingredient | ¼ Cup (g) | ½ Cup (g) | ¾ Cup (g) | 1 Cup (g) | Link |
|---|---|---|---|---|---|
| Powdered Sugar (Confectioners) | 30.0g | 60.0g | 90.0g | 120g | View Powdered Sugar → |
| Granulated Date Sugar | 37.5g | 75.0g | 112.5g | 150g | View Date Sugar → |
| Granulated Maple Sugar | 40.0g | 80.0g | 120.0g | 160g | View Maple Sugar → |
| Light/Unpacked Brown Sugar | 45.0g | 90.0g | 135.0g | 180g | View Light/Unpacked Brown Sugar → |
| Dark Brown Sugar (Loose) | 45.0g | 90.0g | 135.0g | 180g | View Loose Dark Brown Sugar → |
| Coconut Sugar | 48.0g | 96.0g | 144.0g | 192g | View Coconut Sugar → |
| Granulated Palm Sugar | 48.0g | 96.0g | 144.0g | 192g | View Palm Sugar → |
| Granulated Sugar | 50.0g | 100.0g | 150.0g | 200g | View Granulated Sugar → |
| Superfine Caster Sugar | 50.0g | 100.0g | 150.0g | 200g | View Caster Sugar → |
| Belgian Pearl Sugar | 50.0g | 100.0g | 150.0g | 200g | View Pearl Sugar → |
| Coarse Decorating Sanding Sugar | 50.0g | 100.0g | 150.0g | 200g | View Sanding Sugar → |
| Raw Sugar (Turbinado) | 52.5g | 105.0g | 157.5g | 210g | View Raw Sugar (Turbinado) → |
| Demerara Sugar | 52.5g | 105.0g | 157.5g | 210g | View Demerara Sugar → |
| Muscovado Sugar | 52.5g | 105.0g | 157.5g | 210g | View Muscovado Sugar → |
| Turbinado Sugar | 52.5g | 105.0g | 157.5g | 210g | View Turbinado Sugar → |
| Packed Brown Sugar | 55.0g | 110.0g | 165.0g | 220g | View Packed Brown Sugar → |
| Dark Brown Sugar (Packed) | 55.0g | 110.0g | 165.0g | 220g | View Dark Brown Sugar → |
Why Cup Weights Vary in Sugar
Sugar density is primarily dictated by sucrose crystal dimensions, moisture film thickness, and particle packing geometry. Standard table sugar consists of uniform sucrose crystals that settle closely together without inter-particle air pockets, yielding a consistent density of 200 grams per cup. Brown sugars retain residual molasses coatings (3.5% to 6.5% moisture by weight). This surface sticky moisture allows brown sugar to be firmly packed into a measuring cup, increasing bulk weight to 220 grams. Conversely, confectioners powdered sugar undergoes micro-milling and is blended with 3% cornstarch to prevent clumping. The ultra-fine dust traps substantial air volume, resulting in a low density of 120 grams unsifted or 100 grams sifted per cup.
Common Cup Volumes in Grams (Sugar)
| Cup Amount | Powdered Sugar | Date Sugar | Maple Sugar | Light/Unpacked Brown Sugar | Loose Dark Brown Sugar |
|---|---|---|---|---|---|
| 0.25 cup | 30.0g | 37.5g | 40.0g | 45.0g | 45.0g |
| 0.333 cup | 40.0g | 50.0g | 53.3g | 59.9g | 59.9g |
| 0.5 cup | 60.0g | 75.0g | 80.0g | 90.0g | 90.0g |
| 0.667 cup | 80.0g | 100.1g | 106.7g | 120.1g | 120.1g |
| 0.75 cup | 90.0g | 112.5g | 120.0g | 135.0g | 135.0g |
| 1 cup | 120.0g | 150.0g | 160.0g | 180.0g | 180.0g |
| 1.5 cup | 180.0g | 225.0g | 240.0g | 270.0g | 270.0g |
| 2 cup | 240.0g | 300.0g | 320.0g | 360.0g | 360.0g |
| 2.5 cup | 300.0g | 375.0g | 400.0g | 450.0g | 450.0g |
| 3 cup | 360.0g | 450.0g | 480.0g | 540.0g | 540.0g |
Specific Sugar Cups-to-Grams Guides
Looking for Grams to Cups?
Go to Sugar Grams to Cups Hub→Frequently Asked Questions
Why is packed brown sugar heavier than white sugar per cup?
Brown sugar contains molasses moisture which allows the crystals to compress tightly when packed, increasing cup weight from 200g (white sugar) to 220g.
How many grams of powdered sugar are in 1 cup?
Ununsifted powdered sugar weighs 120 grams per US cup. When sifted before measuring, it weighs approximately 100 grams per cup.
Can I swap coconut sugar for granulated sugar 1:1?
Yes, coconut sugar has a similar crystal structure and density (190-200g per cup), making it a suitable 1:1 weight swap in most recipes.
Does sugar volume change when melted into liquid syrup?
When dissolved in hot water, sucrose crystals disassemble into solution, increasing liquid volume without adding volume equal to dry sugar mass.
Why should I weigh sugar on a kitchen scale?
Humidity affects brown sugar moisture and powdered sugar aeration. Weighing sugar in grams ensures exact sweetness and prevents sticky or dry doughs.