Gram to Cup

300 grams of rolled oats to cups

300 g of rolled oats is about 3.33 cups, which is roughly 3 cups + 1/3 or 53.33 tablespoons. That comes from 90 g per US cup. Old-fashioned rolled oats, loosely filled.

Measure300 g of rolled oats
Cups3.33
Kitchen measure3 cups + 1/3
Tablespoons53.33
Grams per cup used90 g

Rolled oats are mostly air. The flakes stack loosely, so a full cup weighs only about 90 g, one of the lightest entries on this site. Do not pack them down; recipes assume a loose fill.

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 300 g of rolled oats?
3.33 cups, or about 3 cups + 1/3. That is worked out at 90 g per US cup.
How many tablespoons is 300 g of rolled oats?
About 53.33 tablespoons, since one US cup is 16 tablespoons. For small amounts tablespoons are usually the more accurate measure to work with.
Why does 300 g give a different number of cups for other ingredients?
Because cups measure volume and grams measure weight. 300 g of rolled oats is 3.33 cups at 90 g per cup, while the same 300 g of a denser or lighter ingredient fills a different amount of space.

Other amounts of rolled oats

227 g230 g240 g250 g260 g270 g280 g320 g340 g350 g

See all rolled oats conversions or 300 g of every other ingredient.