Baking Converter

All-purpose flour: Cups to Grams

By Nathan Hays · Updated July 26, 2026

1 cup of all-purpose flour weighs 120 grams (4.23 oz), measured spooned and leveled. The full chart below covers every common cup measure, and the converter handles any other amount.

Quick answer: 1 cup = 120 g · 1/2 cup = 60 g · 1 tablespoon = 7.5 g · 1 teaspoon = 2.5 g

All-purpose flour conversion chart

US cupsGramsOunces
1/4 cup30 g1.06 oz
1/3 cup40 g1.41 oz
1/2 cup60 g2.12 oz
2/3 cup80 g2.82 oz
3/4 cup90 g3.17 oz
1 cup120 g4.23 oz
1 1/2 cups180 g6.35 oz
2 cups240 g8.47 oz

Grams to cups, in reverse

GramsCups (approx.)
50 g0.42 cups
100 g0.83 cups
200 g1.67 cups
250 g2.08 cups
500 g4.17 cups

About this weight

King Arthur, spooned and leveled. Many charts use 125 g. Published charts for all-purpose flour typically range from 120-125 grams per cup, depending on how the cup is filled. Our figures follow a two-source policy: King Arthur's spooned-and-leveled weights for dry ingredients, and measured density for liquids. The typical published range is shown so you can see how much methods differ. For baking accuracy, weigh with a scale whenever a recipe gives grams; see why bakers weigh.

Convert any amount of all-purpose flour instantly with the free baking converter.

Related ingredients

More conversions

← Back to the converter