How Many Grams in a Cup of Cake Flour?
One cup of cake flour weighs 113 grams when spooned into the cup and levelled off with a straight edge and this page converts cake flour between cups, grams, tablespoons, teaspoons, millilitres and ounces, with full tables, worked examples and a free converter.
| Measure | Weight |
|---|---|
| 1 cup | 113 g |
| 1 tablespoon | 7.1 g |
| 1 teaspoon | 2.35 g |
| 1 cup (volume) | 236.6 ml |
| 1 cup in ounces | 4 oz |
| 100 grams | 0.88 cups |
One cup of cake flour weighs 113 grams, spooned into the cup and levelled off. Milled very fine from soft wheat, it clumps and compacts more readily than all-purpose flour, which changes what a cup holds. Here are its full conversion tables, a converter for any amount, and how to measure it without packing it down.
Convert cake flour instantly
This converter uses the same chef-reviewed database as our Cups to Grams converter for all 128 ingredients. Weights assume a US cup of 236.588 ml; see our methodology and sources.
Cups to grams: cake flour
| Cups | Grams |
|---|---|
| ¼ cup | 28 g |
| ⅓ cup | 38 g |
| ½ cup | 57 g |
| ⅔ cup | 75 g |
| ¾ cup | 85 g |
| 1 cup | 113 g |
| 1½ cups | 170 g |
| 2 cups | 226 g |
| 3 cups | 339 g |
| Measure | Grams |
|---|---|
| 1 tablespoon | 7.1 g |
| 1 teaspoon | 2.35 g |
| 1 cup in ounces | 4 oz |
Grams to cups: cake flour
| Grams | Cups (decimal) | Cups (fraction) |
|---|---|---|
| 50 g | 0.44 cups | ½ cups |
| 100 g | 0.88 cups | ⅞ cups |
| 125 g | 1.11 cups | 1 ⅛ cups |
| 150 g | 1.33 cups | 1 ⅓ cups |
| 200 g | 1.77 cups | 1 ¾ cups |
| 250 g | 2.21 cups | 2 ¼ cups |
| 300 g | 2.65 cups | 2 ⅔ cups |
| 400 g | 3.54 cups | 3 ½ cups |
| 500 g | 4.42 cups | 4 ⅜ cups |
Working with more than one ingredient? The grams in a cup chart puts 40 ingredients in one table, and the Whole Recipe Converter converts a full ingredient list in a single paste.
How to measure cake flour properly
It compacts if you look at it. Cake flour's fine particles settle into a dense mass, so never scoop it: fluff it in the container, spoon it gently into the cup and level off without tapping or shaking. A packed cup can overshoot 113 grams by enough to toughen the crumb it was chosen to keep tender.
Sift — but notice when. Cake flour clumps in storage, and many recipes call for sifting. “1 cup sifted cake flour” means sift before measuring; “1 cup cake flour, sifted” means measure 113 grams first. When in doubt, weigh: the gram figure is the same either way.
Make your own in a pinch. For each cup, take a spooned cup of all-purpose flour (120 grams), remove 2 tablespoons, and whisk in 2 tablespoons of cornstarch — roughly 105 grams of flour plus 14 grams of cornstarch. Sift the mixture twice and it behaves convincingly like cake flour.
Why does a cup of cake flour weigh less than a cup of all-purpose flour?
Cake flour is milled from soft wheat to a very fine, silky powder, and a level spooned cup of it weighs 113 g rather than the 120 g of all-purpose flour. Its fineness cuts both ways when measuring: it spoons in lightly, but it also clumps and settles in the box, so a cup scooped from a compacted layer comes out heavier than intended. Fluffing the flour in its container and spooning gently, without tamping it down, gives the most consistent cup.
Products sold as cake flour also vary. Some are straight soft-wheat flour, while home bakers often imitate it with all-purpose flour plus cornstarch, and that mixture does not weigh or behave exactly like the boxed product. The delicacy it provides matters most where the crumb is the whole point — chiffon cake, angel food cake and tender white layer cakes — because a few extra grams of flour toughen a batter that depends on minimal gluten and maximum lightness.
The most common mistake is measuring cake flour straight from a settled, clumped box, usually by scooping. The fine powder compresses readily, the cup overshoots 113 g, and a cake that should be feather-light bakes up dense. Sifting or thoroughly fluffing first, then spooning and leveling — or simply weighing — keeps the amount honest.
Frequently asked questions
How many grams are in half a cup of cake flour?
Half a cup weighs 56.5 g, half of the 113 g full cup.
How many cups of cake flour are in 100 grams?
About 0.88 of a cup, since a full cup weighs 113 g.
Should cake flour be sifted before it is measured?
If the recipe lists sifted cake flour, sift before measuring; otherwise spoon and level. Weighing sidesteps the issue, because 113 g is the same before or after sifting.
Can cake flour replace all-purpose flour cup for cup?
Not exactly. A cup of cake flour is 113 g against 120 g for all-purpose, and its lower protein changes the texture as well, so swapping by weight is more reliable than swapping by volume.
Sources: the weight on this page is based on published values from the King Arthur Baking ingredient weight chart and USDA FoodData Central, chosen and checked as described in our methodology.