Gram to Cup

907 grams of brown sugar, packed to cups

907 g of brown sugar, packed is about 4.12 cups, which is roughly 4 cups + 1/8 or 65.96 tablespoons. That comes from 220 g per US cup. Firmly packed. Loose brown sugar drops to about 200 g a cup.

Measure907 g of brown sugar, packed
Cups4.12
Kitchen measure4 cups + 1/8
Tablespoons65.96
Grams per cup used220 g

Brown sugar is the only common ingredient that recipes tell you to compress on purpose. The molasses coating makes it clump and trap air, so an unpacked cup can weigh 20 g less than a packed one. When a recipe says one cup of brown sugar, it almost always means firmly packed.

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 907 g of brown sugar, packed?
4.12 cups, or about 4 cups + 1/8. That is worked out at 220 g per US cup, and a cup of brown sugar, packed can run 200 to 220 g depending on packing pressure.
How many tablespoons is 907 g of brown sugar, packed?
About 65.96 tablespoons, since one US cup is 16 tablespoons. For small amounts tablespoons are usually the more accurate measure to work with.
Why does 907 g give a different number of cups for other ingredients?
Because cups measure volume and grams measure weight. 907 g of brown sugar, packed is 4.12 cups at 220 g per cup, while the same 907 g of a denser or lighter ingredient fills a different amount of space.

Other amounts of brown sugar, packed

350 g375 g400 g425 g450 g454 g500 g600 g750 g1000 g

See all brown sugar, packed conversions or 907 g of every other ingredient.