1 oz of Powdered Sugar to Cups

1 ounce of powdered sugar = about ¼ cup

That's 0.24 US cups, or 0.22 metric cups (250 ml).

1 ounce of powdered sugar in other units

Grams: 28
US cups: 0.24
Metric cups (250 ml): 0.22
Tablespoons: 3.78
Milliliters: 56

How to convert ounces of powdered sugar to cups

Weight ounces first become grams (1 oz = 28.35 g), so 1 oz = 28 g. One US cup of powdered sugar weighs 120 g, so 28 ÷ 120 = 0.24 cups.

This is unsifted powdered sugar spooned into the cup. Sifted powdered sugar is lighter, about 100 g per cup.

Powdered Sugar: ounces to cups chart

Ounces	Cups	Exact
1 ounce	about ¼ cup	0.24 cups
2 ounces	about ½ cup	0.47 cups
3 ounces	about ¾ cup	0.71 cups
4 ounces	about 1 cup	0.94 cups
5 ounces	about 1⅛ cups	1.18 cups
6 ounces	about 1⅜ cups	1.42 cups
8 ounces	about 1⅞ cups	1.89 cups
10 ounces	about 2⅜ cups	2.36 cups
12 ounces	about 2⅞ cups	2.83 cups
16 ounces	about 3¾ cups	3.78 cups

1 ounce of other ingredients

The same amount weighs very different things depending on the ingredient:

Ingredient	Cups	Exact
Granulated Sugar	about 2¼ tablespoons	0.14 cups
Brown Sugar	about 2 tablespoons	0.13 cups
Caster Sugar	about 2 tablespoons	0.13 cups
Coconut Sugar	about 3 tablespoons	0.19 cups
Honey	about 1¼ tablespoons	0.08 cups
Maple Syrup	about 1½ tablespoons	0.09 cups
Golden Syrup	about 1¼ tablespoons	0.08 cups
Molasses	about 1¼ tablespoons	0.08 cups
All-Purpose Flour	about ¼ cup	0.23 cups
Bread Flour	about ¼ cup	0.22 cups
Almond Flour	about ⅓ cup	0.3 cups
Butter	2 tablespoons	0.12 cups
Milk	about 1¾ tablespoons	0.12 cups
Rolled Oats	about ⅓ cup	0.31 cups

More powdered sugar conversions

Frequently asked questions

How many cups is 1 ounce of powdered sugar?

1 ounce of powdered sugar is about ¼ cup (0.24 cups), based on 120 g per level US cup.

Is it different with a UK or Australian cup?

Slightly. UK, Australian and New Zealand recipes use a 250 ml metric cup, which is about 6% bigger than a US cup (236.6 ml). In metric cups, 1 ounce of powdered sugar is 0.22 cups.

Should I weigh powdered sugar or measure it by volume?

This is unsifted powdered sugar spooned into the cup. Sifted powdered sugar is lighter, about 100 g per cup. Weighing is always more accurate, which is why grams are the safest choice for baking.