Gram to Cup

90 grams of granulated sugar to cups

90 g of granulated sugar is about 0.45 cups, which is roughly 1/2 cup or 7.2 tablespoons. That comes from 200 g per US cup. Granulated sugar barely compresses, so this number holds.

Measure90 g of granulated sugar
Cups0.45
Kitchen measure1/2 cup
Tablespoons7.2
Grams per cup used200 g

Granulated sugar is the best behaved ingredient in the kitchen. Its crystals are heavy, uniform and free flowing, so a cup weighs 200 g whether you scoop it, pour it or spoon it. There is no packing method to argue about.

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 90 g of granulated sugar?
0.45 cups, or about 1/2 cup. That is worked out at 200 g per US cup.
How many tablespoons is 90 g of granulated sugar?
About 7.2 tablespoons, since one US cup is 16 tablespoons. For small amounts tablespoons are usually the more accurate measure to work with.
Why does 90 g give a different number of cups for other ingredients?
Because cups measure volume and grams measure weight. 90 g of granulated sugar is 0.45 cups at 200 g per cup, while the same 90 g of a denser or lighter ingredient fills a different amount of space.

Other amounts of granulated sugar

70 g74 g75 g80 g85 g100 g110 g112 g113 g115 g

See all granulated sugar conversions or 90 g of every other ingredient.