Gram to Cup

425 grams of brown sugar, packed to cups

425 g of brown sugar, packed is about 1.93 cups, which is roughly 1 cup + 7/8 or 30.91 tablespoons. That comes from 220 g per US cup. Firmly packed. Loose brown sugar drops to about 200 g a cup.

Measure425 g of brown sugar, packed
Cups1.93
Kitchen measure1 cup + 7/8
Tablespoons30.91
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 425 g of brown sugar, packed?
1.93 cups, or about 1 cup + 7/8. 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 425 g of brown sugar, packed?
About 30.91 tablespoons, since one US cup is 16 tablespoons. For small amounts tablespoons are usually the more accurate measure to work with.
Why does 425 g give a different number of cups for other ingredients?
Because cups measure volume and grams measure weight. 425 g of brown sugar, packed is 1.93 cups at 220 g per cup, while the same 425 g of a denser or lighter ingredient fills a different amount of space.

Other amounts of brown sugar, packed

280 g300 g320 g340 g350 g375 g400 g450 g454 g500 g

See all brown sugar, packed conversions or 425 g of every other ingredient.