Flours & Starches
Convert ounces of self-rising flour to cups
One ounce of self-rising flour weighs about 0.227 cup, and half a ounce comes to roughly 0.113 cup. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 oz of self-rising flour =
0.227 cup
About 1/4 cup in recipe notation
- ml
- 53.7
- tbsp
- 3.63
Self-Rising Flour: 125 g per US cup · FAO / INFOODS density database. Self-rising flour already contains baking powder and salt, so never substitute it 1:1 by volume in a recipe that adds its own leavening.
Full self-rising flour chart →Self-Rising Flour at a glance
Every number on this page comes from a single figure: 125 grams per US cup (FAO / INFOODS density database).
- 1 cup
- 125 g
- 1 tablespoon
- 7.81 g
- 1 teaspoon
- 2.6 g
- 1 cup in ounces
- 4.41 oz
- 100 g in cups
- 0.8 cups
- Density
- 0.53 g/ml
ounces to cups chart for self-rising flour
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Ounces (weight) | Cups (US) | Tablespoons (US) | Millilitres |
|---|---|---|---|
| 0.5 oz | 0.113 cup | 1.81 tbsp | 26.8 ml |
| 1 oz | 0.227 cup | 3.63 tbsp | 53.7 ml |
| 2 oz | 0.454 cup | 7.26 tbsp | 107 ml |
| 3 oz | 0.68 cup | 10.9 tbsp | 161 ml |
| 4 oz | 0.907 cup | 14.5 tbsp | 215 ml |
| 5 oz | 1.13 cup | 18.1 tbsp | 268 ml |
| 6 oz | 1.36 cup | 21.8 tbsp | 322 ml |
| 8 oz | 1.81 cup | 29 tbsp | 429 ml |
| 12 oz | 2.72 cup | 43.5 tbsp | 644 ml |
| 16 oz | 3.63 cup | 58.1 tbsp | 859 ml |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat self-rising flour as 125 g per US customary cup, which works out to 0.528 g/ml. From there:
- Your ounces figure is converted into millilitres or grams using standard unit sizes (oz = 28.3 g).
- 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 3/4 cups.
Measuring self-rising flour accurately
Self-rising flour already contains baking powder and salt, so never substitute it 1:1 by volume in a recipe that adds its own leavening.
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 cups are in 1 ounce of self-rising flour?
1 ounce of self-rising flour is 0.227 cup. This is based on a density of 125 g per US cup.
How many cups are in 2 ounces of self-rising flour?
2 ounces of self-rising flour is 0.454 cup, and 0.113 cup for half a ounce.
How much is 100 g of self-rising flour in cups?
100 g of self-rising flour is about 3/4 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 self-rising flour?
Self-rising flour already contains baking powder and salt, so never substitute it 1:1 by volume in a recipe that adds its own leavening.
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.