Cup & Gram

300 Grams to Cups

300 grams is 2 ½ cups of all-purpose flour, 1 ½ cups of granulated sugar, or 1 ⅓ cups of butter — grams measure weight, cups measure volume, so the answer always depends on the ingredient's density. Find yours in the table below; every density is verified against King Arthur and USDA data.

300 g is also 10.6 oz by weight. For water and thin liquids, 300 g is simply 300 ml.

300 grams to cups, by ingredient

300 g in US cups (2026-08-20 verified densities)
IngredientCupsDecimalMeasure it as
all-purpose flour 2 ½ cups 2.5 2 cups + 8 tbsp
granulated sugar 1 ½ cups 1.5 1 cup + 8 tbsp
powdered sugar 2 ½ cups 2.5 2 cups + 8 tbsp
brown sugar (packed) 1 ⅜ cups 1.41 1 cup + 7 tbsp
honey ⅞ cup 0.88 14 tbsp
butter 1 ⅓ cups 1.32 1 cup + 5 tbsp
milk (whole) 1 ¼ cups 1.22 1 cup + 4 tbsp
uncooked white rice 1 ⅝ cups 1.62 1 cup + 10 tbsp
rolled oats 3 ⅜ cups 3.37 3 cups + 6 tbsp
chocolate chips 1 ¾ cups 1.76 1 cup + 12 tbsp
cocoa powder 3 ⅝ cups 3.57 3 cups + 9 tbsp
water 1 ¼ cups 1.25 1 cup + 4 tbsp

Why the ingredient changes the answer

A US cup is a fixed volume (about 237 ml), but a cup of flour weighs 120 g while a cup of honey weighs 340 g — density is the whole game. That's also why there's no single "grams to cups" conversion factor, and why our converter asks for the ingredient first.

Convert another amount

250 g All-purpose flour = 2 ⅛ cups

Exactly 2.08 cups — or measure 2 cups + 1 tbsp.

Nearby amounts

Ingredient-specific charts: flour · sugar · butter · all ingredients · Reverse: cups to grams

Data verified 2026-08-20 · Methodology & sources