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How Much Is 87.28 Ounces of Powdered Sugar in Cups?

87.28 ounces of powdered sugar equals 20.62 cups. That's 2,474.35g, 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.

87.28 ounces of powdered sugar
=
20.62cups
Result using all cup standards info
20.62 cups (US) 19.51 cups (Metric Cup) 17.17 cups (Imperial Cup)
20.62

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 120g/cup = cups
  1. Start with 87.28 ounces of powdered sugar
  2. Convert ounces to grams: 87.28 × 28.35 = 2,474.35g
  3. 1 cup of powdered sugar = 120g
  4. 2,474.35g ÷ 120g/cup = 20.62 cups

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 ounces measurements. Your amount (87.28 ounces) is highlighted.

4 oz0.94 cups5 oz1.18 cups6 oz1.42 cups8 oz1.89 cups10 oz2.36 cups12 oz2.83 cups16 oz3.78 cups87.28 oz20.62 cups

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
87.28 ounces 20.62 cups 19.51 cups 17.17 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?

In US cooking, a cup measures volume, not weight. One standard US cup holds 236.588 ml of liquid. Because different ingredients have different densities, a cup of one ingredient can weigh very differently from a cup of another.

Frequently Asked Questions

About 20.62 cups, based on powdered sugar having a density of 120g per cup. The exact amount depends on how the ingredient is measured and the specific product.
First convert ounces to grams (1 ounce = 28.3495g), then divide by 120 (grams per cup). For 87.28 ounces: 87.28 × 28.3495 = 2,474.35g, then 2,474.35 ÷ 120 = 20.62 cups.
For the most accurate results, weigh powdered sugar on a kitchen scale. If measuring by volume, spoon the ingredient into the measuring cup and level it off with a straight edge rather than scooping directly.
Granulated and powdered sugars should be spooned into the measuring cup and leveled off. Do not pack them unless the recipe specifically says to.
Reverse the conversion: 20.62 cups × 120g/cup = 2,474.35g, then 2,474.35g ÷ 28.3495 = 87.28 ounces. Or use the Cups to Ounces converter.