Cup & Gram

450 Grams to Cups

450 grams is 3 ¾ cups of all-purpose flour, 2 ¼ cups of granulated sugar, or 2 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.

450 g is also 15.9 oz by weight. For water and thin liquids, 450 g is simply 450 ml.

450 grams to cups, by ingredient

450 g in US cups (2026-08-20 verified densities)
IngredientCupsDecimalMeasure it as
all-purpose flour 3 ¾ cups 3.75 3 cups + 12 tbsp
granulated sugar 2 ¼ cups 2.25 2 cups + 4 tbsp
powdered sugar 3 ¾ cups 3.75 3 cups + 12 tbsp
brown sugar (packed) 2 ⅛ cups 2.11 2 cups + 2 tbsp
honey 1 ⅓ cups 1.32 1 cup + 5 tbsp
butter 2 cups 1.98 2 cups
milk (whole) 1 ⅞ cups 1.84 1 cup + 13 tbsp
uncooked white rice 2 ⅜ cups 2.43 2 cups + 7 tbsp
rolled oats 5 cups 5.06 5 cups + 1 tbsp
chocolate chips 2 ⅔ cups 2.65 2 cups + 10 tbsp
cocoa powder 5 ⅜ cups 5.36 5 cups + 6 tbsp
water 1 ⅞ cups 1.88 1 cup + 14 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