One gram of uncooked white rice is 1.2788553 millilitres, so converting grams of uncooked white rice to millilitres means multiplying by 1.2788553. That factor is specific to this ingredient — it comes from its density, not from any relationship between the two units.
Put next to water — 1 g per mL exactly — uncooked white rice measures 0.78195 g per mL. That ratio, 78.19%, is what separates this page from every other ingredient in the same units, and it is measured rather than defined.
Uncooked white rice has a density of 0.78195 g per mL, so 100 mL of it weighs 78.19 g and 250 mL weighs 195.5 g. That single figure is what every other number on this page is built from — water is 1.00 g per mL, so this ingredient is 78.19% as heavy as the same volume of water.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 0.541% of a cup of uncooked white rice, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 2.703 cups, and a 1 kg pack 5.405.
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
grams- The amount of uncooked white rice you are converting, in grams
1.27885533243- Millilitres per gram for uncooked white rice, from its density of 0.78195 g/mL
millilitres- The equivalent quantity in millilitres
How it works, step by step
- Enter the quantity in grams.
- It is multiplied by 1.27885533243, the millilitres-per-gram figure for uncooked white rice.
- The result appears in millilitres, with a second reading in tsp beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
50 g of uncooked white rice in millilitres
A recipe calling for 50 g of uncooked white rice needs 63.9428 millilitres on the scale. The arithmetic is 50 × 1.2788553 = 63.942767, and halving the recipe halves the weight to 31.9714 millilitres.
150 g of uncooked white rice in millilitres
A recipe calling for 150 g of uncooked white rice needs 191.828 millilitres on the scale. The arithmetic is 150 × 1.2788553 = 191.8283, and halving the recipe halves the weight to 95.9141 millilitres.
500 g of uncooked white rice in millilitres
A recipe calling for 500 g of uncooked white rice needs 639.428 millilitres on the scale. The arithmetic is 500 × 1.2788553 = 639.42767, and halving the recipe halves the weight to 319.714 millilitres.
How to read your score
Frequently asked questions
How many millilitres are in 1 g of uncooked white rice?
One gram of uncooked white rice is 1.2788553 millilitres. Half that quantity is 0.639428 millilitres and double it is 2.55771 millilitres, 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?
At this size the spoon wins. One millilitre of uncooked white rice is 0.7819 g, and a scale reading to the nearest gram is working at 128% resolution on that — a measuring spoon is the more accurate instrument below about 5 g, which is why spice quantities are still written in spoons.
How much does 15 mL of uncooked white rice weigh?
15 mL of uncooked white rice comes to 11.729 g, or 11.729 grams. This page runs that calculation in reverse — enter a weight and it returns the volume — and the ml-to-grams page does it in the direction the question is usually asked.
Uncooked white rice in grams and millilitres
| Grams | Millilitres | Unrounded |
|---|---|---|
| 5 g | 6.39428 mL | 6.394276662 |
| 10 g | 12.7886 mL | 12.78855332 |
| 25 g | 31.9714 mL | 31.97138331 |
| 50 g | 63.9428 mL | 63.94276662 |
| 100 g | 127.886 mL | 127.8855332 |
| 125 g | 159.857 mL | 159.8569166 |
| 150 g | 191.828 mL | 191.8282999 |
| 200 g | 255.771 mL | 255.7710665 |
| 250 g | 319.714 mL | 319.7138331 |
| 300 g | 383.657 mL | 383.6565997 |
| 500 g | 639.428 mL | 639.4276662 |
| 1000 g | 1278.86 mL | 1278.855332 |
Based on 185 g per cup of uncooked white rice. One gram of uncooked white rice is 1.2788553 millilitres.
| 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.