Convert Cups of Powdered Sugar to Ounces
1 cup of Powdered Sugar =
4.0oz
Sifted; unsifted is approx 120g/cup
Tools we use for accurate baking
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Etekcity 0.1g Digital Kitchen Scale0.1g resolution — the level of precision yeast, salt, and baking soda need. 11lb capacity, stainless surface.
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Hudson Essentials Stainless Measuring Cups (6-Piece)Stackable, dishwasher-safe, magnetic snap handles. The home-cook standard — sturdy enough to last decades.
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Pyrex 3-Piece Glass Measuring Cup Set1-cup, 2-cup, and 4-cup glass cups with the iconic red lines. For liquids — clear marks at every standard volume.
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OXO Good Grips Stainless Flour SifterSingle-handed squeeze mechanism. Aerates flour for accurate measuring — sifted flour weighs ~5g less per cup.
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Frequently Asked Questions
How many grams are in 1 cup of Powdered Sugar?
One US cup of Powdered Sugar weighs approximately 113g. This is the standard reference weight used by King Arthur Baking and the USDA. Use a kitchen scale for the most accurate measurement; volume measurement can vary by 5-10% depending on how you scoop.
Why does sifting change the gram weight of Powdered Sugar?
Sifting aerates Powdered Sugar, separating clumps and increasing volume. The result: a sifted cup weighs less than an unsifted cup of the same ingredient. For accurate baking, weighing Powdered Sugar on a scale (113g/cup unsifted) is more reliable than measuring by volume.
Should I use a scale or measuring cups for Powdered Sugar?
A digital kitchen scale is more accurate than measuring cups for Powdered Sugar. Volume measurement varies by how you scoop or pack the cup, while weight is consistent. For recipes where precision matters (especially baking), weighing Powdered Sugar at 113g per cup gives the most reliable result.
Where do these Powdered Sugar conversion values come from?
The conversion values for Powdered Sugar on this page come from the following authoritative sources: King Arthur Ingredient Weight Chart;USDA FDC #169656. We cross-reference multiple sources when they're available to ensure accuracy.