To convert cups of uncooked white rice into ounces, multiply by 6.525683: one cup comes to 6.525683 ounces. Every ingredient has its own figure here, because the units are measuring different things and only the density links them.
Water is the yardstick: 1 mL of it weighs 1 g. Uncooked white rice comes in at 0.78195 g per mL, or 78.19% of water, which is why a cup of it is 185 g rather than 236.6 g. Volume and weight only line up for water, and only in metric.
A cup of uncooked white rice is 185 g when it is measured the standard way, but how it gets into the cup changes the answer: between about 166.5 g and 222 g covers the range from lightly spooned to firmly packed. That 20% spread is larger than most of the adjustments recipes fuss over, and it disappears entirely the moment the ingredient is weighed instead.
One cup of uncooked white rice is 6.526 oz. US kitchen scales usually step in eighths of an ounce, which is 3.54 g — around 1.92% of a cup of this ingredient, so the scale is precise enough for a full cup and coarse for a spoonful. That is why recipes mix the two systems: ounces for the bulk, spoons for the small amounts.
What the number depends on: Long grain, unrinsed and dry. It roughly triples in volume once cooked, so the dry cup is the measurement worth converting — a cup of cooked rice is a different quantity entirely.
The formula
cups- The amount of uncooked white rice you are converting, in cups
6.52568296067- Ounces per cup for uncooked white rice, from its density of 0.78195 g/mL
ounces- The equivalent quantity in ounces
How it works, step by step
- Enter the quantity in cups.
- It is multiplied by 6.52568296067, the ounces-per-cup figure for uncooked white rice.
- The result appears in ounces, with a second reading in g beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
1/3 cup of uncooked white rice in ounces
Take 1/3 cup of uncooked white rice: 0.333333 × 6.525683 gives 2.17523 ounces. Doubling the batch takes it to 4.35046 ounces, because the relationship is a straight proportion once the density is known.
3/4 cup of uncooked white rice in ounces
A recipe calling for 3/4 cup of uncooked white rice needs 4.89426 ounces on the scale. The arithmetic is 0.75 × 6.525683 = 4.8942622, and halving the recipe halves the weight to 2.44713 ounces.
3 cup of uncooked white rice in ounces
A recipe calling for 3 cup of uncooked white rice needs 19.577 ounces on the scale. The arithmetic is 3 × 6.525683 = 19.577049, and halving the recipe halves the weight to 9.78852 ounces.
How to read your score
Frequently asked questions
How many ounces are in 1 cup of uncooked white rice?
One cup of uncooked white rice is 6.525683 ounces. Half that quantity is 3.26284 ounces and double it is 13.0514 ounces, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of uncooked white rice not 236 g like water?
Because weight per cup depends on what is in the cup. Uncooked white rice has a density of 0.78195 g per mL where water has 1.00, so a cup of it weighs 185 g rather than 236.6 g. That is a difference of 51.6 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Yes, and by more than most people expect. Handling changes the weight of a cup of uncooked white rice by roughly 20% — about 18.5 g either side of 185 g — because long grain, unrinsed and dry. Weighing removes the question entirely.
Is a fluid ounce of uncooked white rice the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of uncooked white rice weighs 0.8157 oz, so the two readings differ by 18.4%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of uncooked white rice would weigh 195.49 g instead of 185 g — 10.5 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
A scale, if the result matters. Volume measuring carries a spread of about 20% for uncooked white rice — roughly 37 g on a 185 g cup — while a domestic scale is accurate to a gram or two. For anything where the ratio of ingredients drives the outcome, bread and pastry above all, weigh it.
How many cups of uncooked white rice is 16 oz?
16 oz of uncooked white rice is 2.4519 cups — 0.153241 cups to one ounce, so 16 × 0.153241 = 2.4519. Going that way is a division by 6.52568, or a multiplication by 0.153241 if you prefer.
Uncooked white rice in cups and ounces
| Cups | Ounces | Unrounded |
|---|---|---|
| 1/8 cup | 0.81571 oz | 0.8157103701 |
| 1/4 cup | 1.63142 oz | 1.63142074 |
| 1/3 cup | 2.17523 oz | 2.175227654 |
| 1/2 cup | 3.26284 oz | 3.26284148 |
| 2/3 cup | 4.35046 oz | 4.350455307 |
| 3/4 cup | 4.89426 oz | 4.894262221 |
| 1 cup | 6.52568 oz | 6.525682961 |
| 1 1/2 cup | 9.78852 oz | 9.788524441 |
| 2 cup | 13.0514 oz | 13.05136592 |
| 3 cup | 19.577 oz | 19.57704888 |
| 4 cup | 26.1027 oz | 26.10273184 |
Based on 185 g per cup of uncooked white rice. One cup of uncooked white rice is 6.525683 ounces.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 185 g | 6.53 oz | 236.6 mL |
| 3/4 cup | 138.8 g | 4.89 oz | 177.4 mL |
| 2/3 cup | 123.3 g | 4.35 oz | 157.7 mL |
| 1/2 cup | 92.5 g | 3.26 oz | 118.3 mL |
| 1/3 cup | 61.67 g | 2.18 oz | 78.86 mL |
| 1/4 cup | 46.25 g | 1.63 oz | 59.15 mL |
| 1 tbsp | 11.56 g | 0.408 oz | 14.79 mL |
| 1 tsp | 3.854 g | 0.136 oz | 4.929 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Semolina | 167 g | 5.891 oz | 0.7059 |
| Uncooked quinoa | 170 g | 5.997 oz | 0.7185 |
| Dry couscous | 170 g | 5.997 oz | 0.7185 |
| Uncooked white rice (this page) | 185 g | 6.526 oz | 0.7819 |
| Uncooked brown rice | 190 g | 6.702 oz | 0.8031 |
| Dried lentils | 192 g | 6.773 oz | 0.8115 |
| Granulated sugar | 200 g | 7.055 oz | 0.8454 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.