How Much Is 8 Ounces of Powdered Sugar in Cups?
8 ounces of powdered sugar equals 1.89 cups. That's 226.80g, and Powdered sugar has a density of 120g per cup. Because ounces measure weight and cups measure volume, the result depends on the ingredient's density.
Formula and Step-by-Step
- Start with 8 ounces of powdered sugar
- Convert ounces to grams: 8 × 28.35 = 226.80g
- 1 cup of powdered sugar = 120g
- 226.80g ÷ 120g/cup = 1.89 cups
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Powdered sugar settles significantly during storage. Sifted powdered sugar weighs about 100g per cup compared to 120g unsifted - check whether your recipe means sifted or unsifted.
Powdered Sugar at Different Amounts
How powdered sugar scales across common ounces measurements. Your amount (8 ounces) is highlighted.
Other Amounts of Powdered Sugar
| Ounces | US Cups | Metric Cup | Imperial Cup |
|---|---|---|---|
| 1 ounce | 0.24 cups | 0.22 cups | 0.20 cups |
| 2 ounces | 0.47 cups | 0.45 cups | 0.39 cups |
| 3 ounces | 0.71 cups | 0.67 cups | 0.59 cups |
| 4 ounces | 0.94 cups | 0.89 cups | 0.79 cups |
| 5 ounces | 1.18 cups | 1.12 cups | 0.98 cups |
| 6 ounces | 1.42 cups | 1.34 cups | 1.18 cups |
| 8 ounces | 1.89 cups | 1.79 cups | 1.57 cups |
| 10 ounces | 2.36 cups | 2.24 cups | 1.97 cups |
| 12 ounces | 2.83 cups | 2.68 cups | 2.36 cups |
| 16 ounces | 3.78 cups | 3.58 cups | 3.15 cups |
Understanding the Units
What is an Ounce?
An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.
What is a Cup?
There are three cup standards used worldwide. The US cup (236.588 ml) is used in American recipes. The metric cup (250 ml) is standard in Australia, New Zealand, and some parts of Asia. The imperial cup (284.131 ml) appears in older British and Canadian recipes. A metric cup holds about 5.7% more than a US cup, while an imperial cup holds about 20% more. Using the wrong standard can noticeably affect a recipe.