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Powdered Sugar — Cups in Ounces
How many ounces of powdered sugar in 1 cup?
1 cup of powdered sugar equals 3.95 ( ~ 4) ounces*
About powdered sugar measurements
Powdered (icing) sugar is extremely light, about 0.47 g/ml or just 112 g per US cup, because the milled crystals and cornstarch trap air. It clumps readily, so an unsifted, packed cup weighs well over a sifted one — recipes that call for 'sifted' are expecting the lighter measure.
Cups of powdered sugar equivalent in ounces?

FAQs on powdered sugar volume to weight conversion
1 cup of powdered sugar equals how many ounces?
1 cup of powdered sugar is equivalent 3.95 ( ~ 4) ounces.
How much is 3.95 ounces of powdered sugar in cups?
3.95 ounces of powdered sugar equals 1 cup.
US cups to Ounces of Powdered sugar Conversion Chart
Note: Fractions are rounded to common recipe fractions (1/8, 1/4, 1/3, 1/2, 2/3, 3/4…). Values are rounded to 3 significant figures.
| US cups to ounces of Powdered sugar | |
|---|---|
| 0.247 ( ~ 1/4 ) ounces | |
| 0.493 ( ~ 1/2 ) ounces | |
| 0.987 ( ~ 1 ) ounces | |
| 1.32 ( ~ 1 1/3 ) ounces | |
| 1.97 ( ~ 2 ) ounces | |
| 2.63 ( ~ 2 2/3 ) ounces | |
| 2.96 ( ~ 3 ) ounces | |
| 1 US cup | 3.95 ( ~ 4 ) ounces |
| 1 | 4.19 ( ~ 4 1/4 ) ounces |
| 1 | 4.44 ( ~ 4 1/2 ) ounces |
| 1 | 4.93 ( ~ 5 ) ounces |
| 1 | 5.26 ( ~ 5 1/4 ) ounces |
| 1 | 5.92 ( ~ 6 ) ounces |
| 1 | 6.58 ( ~ 6 1/2 ) ounces |
| 1 | 6.91 ( ~ 7 ) ounces |
| 2 US cups | 7.89 ( ~ 8 ) ounces |
| 2 | 8.14 ( ~ 8 1/8 ) ounces |
| 2 | 8.39 ( ~ 8 1/3 ) ounces |
| 2 | 8.88 ( ~ 9 ) ounces |
| 2 | 9.21 ( ~ 9 1/4 ) ounces |
| 2 | 9.87 ( ~ 9 3/4 ) ounces |
| 3 US cups | 11.8 ( ~ 11 3/4 ) ounces |
| 4 US cups | 15.8 ( ~ 15 3/4 ) ounces |
| 5 US cups | 19.7 ( ~ 19 3/4 ) ounces |
| 6 US cups | 23.7 ( ~ 23 2/3 ) ounces |
| 8 US cups | 31.6 ( ~ 31 1/2 ) ounces |
| 10 US cups | 39.5 ( ~ 39 1/2 ) ounces |
References:
Popular Volume to Weight Conversions
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.