CupsToGrams kitchen card
1 US cup = 240 ml, 1 tablespoon = 15 ml, 1 teaspoon = 5 ml. Figures verified 5 August 2026. https://cupsngrams.com/all-purpose-flour
All-Purpose Flour: Cups to Grams
Also called plain flour or maida.
One US cup (240 ml) of all-purpose flour weighs 125 grams; half a cup weighs 62.5 grams. A quarter cup is 31.3 grams, a tablespoon is 7.81 grams and a teaspoon is 2.6 grams. These numbers are for all-purpose flour only, because a cup measures volume, not weight.
125 g
1 cup of all-purpose flour = 125 g (US legal cup, 240 ml)
1 cup of all-purpose flour = 125 g (US legal cup, 240 ml)
Based on all-purpose flour at 125 g per US cup.
CupsToGrams, cupsngrams.com
Baking from a UK, Australian or New Zealand recipe? Their cup is not the American one. Pick the standard your recipe assumes and every cup figure follows it.
All-Purpose Flour conversion table
| Cups | Cups (decimal) | Grams | Tablespoons | Millilitres | Ounces (weight) |
|---|---|---|---|---|---|
| 1/8 cup | 0.125 | 15.6 g | 2 tbsp | 30 ml | 0.551 oz |
| 1/4 cup | 0.25 | 31.3 g | 4 tbsp | 60 ml | 1.1 oz |
| 1/3 cup | 0.33 | 41.7 g | 5.33 tbsp | 80 ml | 1.47 oz |
| 1/2 cup | 0.5 | 62.5 g | 8 tbsp | 120 ml | 2.2 oz |
| 2/3 cup | 0.67 | 83.3 g | 10.7 tbsp | 160 ml | 2.94 oz |
| 3/4 cup | 0.75 | 93.8 g | 12 tbsp | 180 ml | 3.31 oz |
| 1 cup | 1 | 125 g | 16 tbsp | 240 ml | 4.41 oz |
| 1 1/4 cups | 1.25 | 156 g | 20 tbsp | 300 ml | 5.51 oz |
| 1 1/3 cups | 1.33 | 167 g | 21.3 tbsp | 320 ml | 5.88 oz |
| 1 1/2 cups | 1.5 | 188 g | 24 tbsp | 360 ml | 6.61 oz |
| 1 2/3 cups | 1.67 | 208 g | 26.7 tbsp | 400 ml | 7.35 oz |
| 1 3/4 cups | 1.75 | 219 g | 28 tbsp | 420 ml | 7.72 oz |
| 2 cups | 2 | 250 g | 32 tbsp | 480 ml | 8.82 oz |
| 2 1/4 cups | 2.25 | 281 g | 36 tbsp | 540 ml | 9.92 oz |
| 2 1/2 cups | 2.5 | 313 g | 40 tbsp | 600 ml | 11 oz |
| 3 cups | 3 | 375 g | 48 tbsp | 720 ml | 13.2 oz |
| 3 2/3 cups | 3.67 | 458 g | 58.7 tbsp | 880 ml | 16.2 oz |
Ounces here are ounces of weight (1 oz = 28.35 g), not fluid ounces. One US cup is 8 fluid ounces of volume whatever is in it, but what it weighs in ounces depends on the ingredient: a cup of all-purpose flour weighs about 4.41 oz. Why these two are not the same. Decimals for thirds are rounded (1/3 cup is 0.333 cups), and each linked amount opens a page comparing every ingredient at that measure.
Cite this: CupsToGrams, "All-Purpose Flour: Cups to Grams", https://cupsngrams.com/all-purpose-flour, figures verified . The data is free to reuse under CC BY 4.0 with a link back to this page.
About measuring all-purpose flour
All-purpose flour is the workhorse of most kitchens, and one US cup of it weighs about 125 grams when spooned and levelled. Because flour compresses so easily, the way you fill the cup matters more than for almost any other ingredient. Scoop straight from the bag and you can pack in 150 grams or more, which is why so many cakes and cookies come out dense or dry. Weighing removes that guesswork entirely.
Spoon flour into the cup and level it off. Scooping straight from the bag packs in extra grams.
How many grams is a cup of all-purpose flour?
One US cup (240 ml) of all-purpose flour weighs about 125 grams. Because a cup measures volume rather than weight, that figure is specific to all-purpose flour and does not transfer to any other ingredient: the same cup holds 125 grams of all-purpose flour and 340 grams of honey.
- 1/4 cup of all-purpose flour is about 31 grams
- 1/3 cup of all-purpose flour is about 42 grams
- 1/2 cup of all-purpose flour is about 63 grams
- 2/3 cup of all-purpose flour is about 83 grams
- 3/4 cup of all-purpose flour is about 94 grams
- 1 1/2 cups of all-purpose flour is about 188 grams
- 2 cups of all-purpose flour is about 250 grams
- 3 cups of all-purpose flour is about 375 grams
Working the other way round, 100 grams of all-purpose flour is about 0.8 cups, and 500 grams is about 4 cups.
Does it matter which cup my recipe means?
It does, though less than the ingredient itself. This page uses the US legal cup of 240 ml. An Australian metric cup is 250 ml, so a metric cup of all-purpose flour comes to about 130 grams, and the old British imperial cup of 284.1 ml holds about 148 grams. See cup sizes by country for every standard side by side.
Frequently asked questions
How many grams is 1 cup of all-purpose flour?
One US cup of all-purpose flour is about 125 grams when spooned and levelled. Packing it down by scooping from the bag can push it to 150 grams or more.
Why do recipes differ on the weight of a cup of flour?
Flour is compressible, so its weight depends on how it is measured. Values between 120 and 130 grams per cup are all common. CupsToGrams uses 125 grams, the spoon-and-level standard.
Is bread flour the same weight as all-purpose flour?
They are close. Bread flour sits a touch higher at around 127 grams per cup because of its slightly denser protein structure, but for most recipes you can treat them the same.
What else is all-purpose flour called?
All-purpose flour is also called plain flour or maida. This site treats these names as the same product, so the figures on this page apply to all of them: one US cup weighs 125 grams.
How many grams is 3 2/3 cups of all-purpose flour?
3 2/3 cups of all-purpose flour weighs 458 grams: 3 cups is 375 grams and the extra 2/3 cup adds 83.3 grams.
What part of a cup is 42 grams of all-purpose flour?
About a third of a cup. 42 grams of all-purpose flour is 0.336 US cups, and a level 1/3 cup weighs 41.7 grams.
When a recipe says one cup of an ingredient, how many grams is it?
It depends on the ingredient, because a cup measures volume, not weight. One US cup (240 ml) of all-purpose flour weighs 125 grams, granulated sugar 200 grams, butter 227 grams and water 240 grams.
Where this figure comes from
| Reference | Grams per US cup | Notes |
|---|---|---|
| King Arthur Baking ingredient weight chart | 120 g | Spooned into the cup and levelled off, never scooped. King Arthur is unusually strict about method, and the method is most of the difference. |
| This page | 125 g | The figure the converter above uses |
King Arthur publishes 120 grams and this site prints 125. Both are defensible and the gap is about four percent, which is smaller than the swing you get between spooning flour into the cup and scooping it straight from the bag. 125 grams is the figure the great majority of American recipe writing assumes, so a recipe you find online is more likely to have been written against it. If you are baking a King Arthur recipe, use their number.
Published figures for the same ingredient vary between references anyway, because how an ingredient is packed changes what a cup of it weighs. Treat any cup figure as accurate to within a few percent, and weigh on a scale when a recipe is sensitive. Our full approach is on the methodology page.
Figures last verified . Compiled by the CupsToGrams editorial team at FusionStudios. Spotted a value that looks off? Tell us.