How Much Is 28 Cups of Powdered Sugar in Ounces?
28 cups of powdered sugar weighs 118.52 oz. This is based on powdered sugar having a density of 120g per cup. Because cups measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 28 cups.
Formula and Step-by-Step
- Start with 28 cups of powdered sugar
- 1 cup of powdered sugar = 120g
- 28 × 120 = 3,360g
- Convert grams to ounces: 3,360 ÷ 28.3495 = 118.52 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Powdered sugar dissolves faster than granulated, making it ideal for frostings and glazes. Weight is the most reliable way to measure it consistently.
Powdered Sugar at Different Amounts
How powdered sugar scales across common cups measurements. Your amount (28 cups) is highlighted.
For reference, 28 cups of powdered sugar (3,360g) is close in weight to a gallon of milk (3,900g).
Other Amounts of Powdered Sugar
| Cups | US Ounces | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 1.06 oz | 1.12 oz | 1.27 oz |
| 0.33 cups | 1.40 oz | 1.48 oz | 1.68 oz |
| 0.5 cups | 2.12 oz | 2.24 oz | 2.54 oz |
| 0.75 cups | 3.17 oz | 3.35 oz | 3.81 oz |
| 1 cup | 4.23 oz | 4.47 oz | 5.08 oz |
| 1.5 cups | 6.35 oz | 6.71 oz | 7.63 oz |
| 2 cups | 8.47 oz | 8.95 oz | 10.17 oz |
| 3 cups | 12.70 oz | 13.42 oz | 15.25 oz |
| 4 cups | 16.93 oz | 17.89 oz | 20.33 oz |
| 5 cups | 21.16 oz | 22.36 oz | 25.42 oz |
| 28 cups | 118.52 oz | 125.24 oz | 142.34 oz |
Understanding the Units
What is a Cup?
A cup is a US customary unit of volume equal to 236.588 milliliters or 8 fluid ounces. It is the most common volume measurement in American recipes. One cup can be divided into 16 tablespoons or 48 teaspoons.
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.