Grains, Rice & Legumes
Convert ounces of cooked white rice to cups
One ounce of cooked white rice weighs about 0.179 cup, and half a ounce comes to roughly 0.09 cup. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 oz of cooked white rice =
0.179 cup
About 1/8 cup in recipe notation
- ml
- 42.5
- tbsp
- 2.87
Cooked White Rice: 158 g per US cup · USDA FoodData Central. Cooked grains hold water and pack loosely, so a cup weighs less than uncooked rice.
Full cooked white rice chart →Cooked White Rice at a glance
Every number on this page comes from a single figure: 158 grams per US cup (USDA FoodData Central).
- 1 cup
- 158 g
- 1 tablespoon
- 9.88 g
- 1 teaspoon
- 3.29 g
- 1 cup in ounces
- 5.57 oz
- 100 g in cups
- 0.633 cups
- Density
- 0.67 g/ml
ounces to cups chart for cooked white rice
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 | 0.09 cup | 1.44 tbsp | 21.2 ml |
| 1 oz | 0.179 cup | 2.87 tbsp | 42.5 ml |
| 2 oz | 0.359 cup | 5.74 tbsp | 84.9 ml |
| 3 oz | 0.538 cup | 8.61 tbsp | 127 ml |
| 4 oz | 0.718 cup | 11.5 tbsp | 170 ml |
| 5 oz | 0.897 cup | 14.4 tbsp | 212 ml |
| 6 oz | 1.08 cup | 17.2 tbsp | 255 ml |
| 8 oz | 1.44 cup | 23 tbsp | 340 ml |
| 12 oz | 2.15 cup | 34.4 tbsp | 509 ml |
| 16 oz | 2.87 cup | 45.9 tbsp | 679 ml |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat cooked white rice as 158 g per US customary cup, which works out to 0.668 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 5/8 cups.
Measuring cooked white rice accurately
Cooked grains hold water and pack loosely, so a cup weighs less than uncooked rice.
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 cooked white rice?
1 ounce of cooked white rice is 0.179 cup. This is based on a density of 158 g per US cup.
How many cups are in 2 ounces of cooked white rice?
2 ounces of cooked white rice is 0.359 cup, and 0.09 cup for half a ounce.
How much is 100 g of cooked white rice in cups?
100 g of cooked white rice is about 5/8 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 cooked white rice?
Cooked grains hold water and pack loosely, so a cup weighs less than uncooked rice.
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.