Flours & Starches
Convert cups of cake flour to ounces
One cup of cake flour weighs about 4.02 oz, and half a cup comes to roughly 2.01 oz. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 cup of cake flour =
4.02 oz
- kg
- 0.114
- lb
- 0.251
Cake Flour: 114 g per US cup · FAO / INFOODS density database. Cake flour is milled finer and is often sold pre-sifted, so it is the lightest of the wheat flours per cup.
Full cake flour chart →Cake Flour at a glance
Every number on this page comes from a single figure: 114 grams per US cup (FAO / INFOODS density database).
- 1 cup
- 114 g
- 1 tablespoon
- 7.13 g
- 1 teaspoon
- 2.38 g
- 1 cup in ounces
- 4.02 oz
- 100 g in cups
- 0.877 cups
- Density
- 0.48 g/ml
cups to ounces chart for cake flour
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Cups (US) | Grams | Ounces (weight) | Pounds |
|---|---|---|---|
| 1/8 cup | 14.3 g | 0.503 oz | 0.031 lb |
| 1/4 cup | 28.5 g | 1.01 oz | 0.063 lb |
| 1/3 cup | 38 g | 1.34 oz | 0.084 lb |
| 1/2 cup | 57 g | 2.01 oz | 0.126 lb |
| 2/3 cup | 76 g | 2.68 oz | 0.168 lb |
| 3/4 cup | 85.5 g | 3.02 oz | 0.188 lb |
| 1 cup | 114 g | 4.02 oz | 0.251 lb |
| 1 1/2 cup | 171 g | 6.03 oz | 0.377 lb |
| 2 cup | 228 g | 8.04 oz | 0.503 lb |
| 3 cup | 342 g | 12.1 oz | 0.754 lb |
| 4 cup | 456 g | 16.1 oz | 1.01 lb |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat cake flour as 114 g per US customary cup, which works out to 0.482 g/ml. From there:
- Your cups figure is converted into millilitres or grams using standard unit sizes (cup = 237 ml).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 7/8 cups.
Measuring cake flour accurately
Cake flour is milled finer and is often sold pre-sifted, so it is the lightest of the wheat flours per cup.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many ounces are in 1 cup of cake flour?
1 cup of cake flour is 4.02 oz. This is based on a density of 114 g per US cup.
How many ounces are in 2 cups of cake flour?
2 cups of cake flour is 8.04 oz, and 2.01 oz for half a cup.
How much is 100 g of cake flour in cups?
100 g of cake flour is about 7/8 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for cake flour?
Cake flour is milled finer and is often sold pre-sifted, so it is the lightest of the wheat flours per cup.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.