Gram to Cup

125 grams of powdered sugar to cups

125 g of powdered sugar is about 1.04 cups, which is roughly 1 cup or 16.67 tablespoons. That comes from 120 g per US cup. Unsifted. Sifted powdered sugar falls to roughly 100 g a cup.

Measure125 g of powdered sugar
Cups1.04
Kitchen measure1 cup
Tablespoons16.67
Grams per cup used120 g

Powdered sugar, also sold as confectioners or icing sugar, is ground so fine that it aerates like flour. An unsifted spooned cup weighs about 120 g, while a sifted cup drops to roughly 100 g. That is a 17 percent difference from one word in the recipe.

Result
0.83 cups
About 7/8 cup of all-purpose flour. 100 g is 3.53 oz by weight.
Assumes spoon-and-level. Scooped flour runs closer to 140 g a cup.

Questions

How many cups is 125 g of powdered sugar?
1.04 cups, or about 1 cup. That is worked out at 120 g per US cup, and a cup of powdered sugar can run 100 to 125 g depending on sifting.
How many tablespoons is 125 g of powdered sugar?
About 16.67 tablespoons, since one US cup is 16 tablespoons. For small amounts tablespoons are usually the more accurate measure to work with.
Why does 125 g give a different number of cups for other ingredients?
Because cups measure volume and grams measure weight. 125 g of powdered sugar is 1.04 cups at 120 g per cup, while the same 125 g of a denser or lighter ingredient fills a different amount of space.

Other amounts of powdered sugar

90 g100 g110 g112 g113 g115 g120 g140 g150 g160 g

See all powdered sugar conversions or 125 g of every other ingredient.