A finely milled, low-protein flour that gives cakes a light, tender crumb. One US cup weighs about 114g — about 1.1× lighter than a cup of all-purpose flour.
Cake flour is preselected below — just enter an amount.
The most commonly searched gram amounts, converted to cups automatically.
| Grams | Cups |
|---|---|
| 25g | 0.22 cups≈ ¼ cup |
| 50g | 0.44 cups≈ ½ cup |
| 75g | 0.66 cups≈ ⅔ cup |
| 100g | 0.88 cups |
| 125g | 1.10 cups |
| 150g | 1.32 cups≈ 1 ⅓ cups |
| 200g | 1.75 cups≈ 1 ¾ cups |
| 250g | 2.19 cups≈ 2 ¼ cups |
| 300g | 2.63 cups≈ 2 ⅔ cups |
| 500g | 4.39 cups≈ 4 ⅓ cups |
| 1000g | 8.77 cups≈ 8 ¾ cups |
A finely milled, low-protein flour that gives cakes a light, tender crumb. It's also commonly labeled "soft flour", "low-protein flour".
Cake flour belongs to the Flours group on GramToCup, alongside other ingredients measured the same way in most kitchens. It shows up most often in layer cakes, cupcakes, sponge cake. Its density of 114g per US cup is what this calculator uses to convert between grams and cups automatically — no manual lookup required.
Cake flour is a dry, milled or ground ingredient full of countless tiny air pockets between the particles. That trapped air is why it weighs relatively little for its volume — the exact weight shifts with how finely it's milled and how much it has settled in the container.
A cup of cake flour is about 1.1× lighter than a cup of all-purpose flour (125g/cup), even though both fill the same 1-cup measuring cup.
Common mistake: Scooping the measuring cup directly into the bag, which packs the contents and can add 20g or more per cup.
Spoon cake flour into the measuring cup, then level off the top with a straight edge. Don't scoop directly from the bag — that packs it down and adds extra weight.
When a recipe needs to be exact, weigh it on a kitchen scale instead of using a measuring cup at all — it removes packing and settling from the equation entirely.
Store cake flour in a sealed container — humidity is the main reason the same cup can weigh differently from one day to the next.
100g of cake flour is approximately 0.88 cups, based on a density of 114g per US cup.
1 US cup of cake flour weighs about 114g. Use the calculator above to convert any other amount instantly.
Yes — "soft flour" is another common name for cake flour. The density and conversion values on this page apply either way.
Because cups measure volume and grams measure weight. A cup of cake flour is about 1.1× lighter than a cup of all-purpose flour (125g/cup) because the two ingredients have different densities — see the density explanation above for why.
Spoon cake flour into the measuring cup, then level off the top with a straight edge. Don't scoop directly from the bag — that packs it down and adds extra weight.
They're in the same category, but check the density first: All-purpose flour weighs 125g per cup versus 114g for cake flour. Substituting by weight (grams) keeps a recipe accurate; substituting cup-for-cup can change the result if the densities differ much.