Gram to Cup

120 grams of peanut butter to cups

120 g of peanut butter is about 0.47 cups, which is roughly 1/2 cup or 7.44 tablespoons. That comes from 258 g per US cup. Smooth style, pressed in to remove air pockets.

Measure120 g of peanut butter
Cups0.47
Kitchen measure1/2 cup
Tablespoons7.44
Grams per cup used258 g

Smooth peanut butter runs about 258 g a cup when pressed in properly. It is thick enough to bridge over air pockets, so push it into the cup with a spatula and level the top, or the cup will read full while holding 10 percent less.

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 120 g of peanut butter?
0.47 cups, or about 1/2 cup. That is worked out at 258 g per US cup.
How many tablespoons is 120 g of peanut butter?
About 7.44 tablespoons, since one US cup is 16 tablespoons. For small amounts tablespoons are usually the more accurate measure to work with.
Why does 120 g give a different number of cups for other ingredients?
Because cups measure volume and grams measure weight. 120 g of peanut butter is 0.47 cups at 258 g per cup, while the same 120 g of a denser or lighter ingredient fills a different amount of space.

Other amounts of peanut butter

85 g90 g100 g110 g112 g113 g115 g125 g140 g150 g

See all peanut butter conversions or 120 g of every other ingredient.