One millilitre of uncooked brown rice is 0.80308304 grams, so converting millilitres of uncooked brown rice to grams means multiplying by 0.80308304. That factor is specific to this ingredient — it comes from its density, not from any relationship between the two units.
Water is the yardstick: 1 mL of it weighs 1 g. Uncooked brown rice comes in at 0.80308 g per mL, or 80.31% of water, which is why a cup of it is 190 g rather than 236.6 g. Volume and weight only line up for water, and only in metric.
Uncooked brown rice has a density of 0.80308 g per mL, so 100 mL of it weighs 80.31 g and 250 mL weighs 200.8 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 80.31% 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 0.526% of a cup of uncooked brown rice, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 2.632 cups, and a 1 kg pack 5.263.
How the figure is arrived at: The bran layer left on the grain makes it slightly heavier per cup than white rice of the same variety.
The formula
millilitres- The amount of uncooked brown rice you are converting, in millilitres
0.803083039169- Grams per millilitre for uncooked brown rice, from its density of 0.80308 g/mL
grams- The equivalent quantity in grams
How it works, step by step
- Enter the quantity in millilitres.
- It is multiplied by 0.803083039169, the grams-per-millilitre figure for uncooked brown rice.
- The result appears in grams, with a second reading in oz beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
15 mL of uncooked brown rice in grams
A recipe calling for 15 mL of uncooked brown rice needs 12.0462 grams on the scale. The arithmetic is 15 × 0.80308304 = 12.046246, and halving the recipe halves the weight to 6.02312 grams.
100 mL of uncooked brown rice in grams
100 mL of uncooked brown rice weighs out at 80.3083 grams. Divide 80.3083 by 0.80308304 and you get back to 100 mL, which is the quickest check that the factor is the right way up.
250 mL of uncooked brown rice in grams
Take 250 mL of uncooked brown rice: 250 × 0.80308304 gives 200.771 grams. Doubling the batch takes it to 401.542 grams, because the relationship is a straight proportion once the density is known.
How to read your score
Frequently asked questions
How many grams are in 1 mL of uncooked brown rice?
One millilitre of uncooked brown rice is 0.80308304 grams. Half that quantity is 0.401542 grams and double it is 1.60617 grams, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of uncooked brown rice not 236 g like water?
Because weight per cup depends on what is in the cup. Uncooked brown rice has a density of 0.80308 g per mL where water has 1.00, so a cup of it weighs 190 g rather than 236.6 g. That is a difference of 46.6 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 brown rice by roughly 20% — about 19 g either side of 190 g — because the bran layer left on the grain makes it slightly heavier per cup than white rice of the same variety. Weighing removes the question entirely.
Is a fluid ounce of uncooked brown 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 brown rice weighs 0.8378 oz, so the two readings differ by 16.2%. 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 brown rice would weigh 200.77 g instead of 190 g — 10.8 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 brown rice is 0.8031 g, and a scale reading to the nearest gram is working at 125% 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 many millilitres of uncooked brown rice is 500 g?
500 g of uncooked brown rice is 622.6 millilitres — 1.2452 millilitres to one gram, so 500 × 1.2452 = 622.6. Going that way is a division by 0.803083, or a multiplication by 1.2452 if you prefer.
Uncooked brown rice in millilitres and grams
| Millilitres | Grams | Unrounded |
|---|---|---|
| 5 mL | 4.01542 g | 4.015415196 |
| 10 mL | 8.03083 g | 8.030830392 |
| 15 mL | 12.0462 g | 12.04624559 |
| 30 mL | 24.0925 g | 24.09249118 |
| 50 mL | 40.1542 g | 40.15415196 |
| 100 mL | 80.3083 g | 80.30830392 |
| 125 mL | 100.385 g | 100.3853799 |
| 150 mL | 120.462 g | 120.4624559 |
| 200 mL | 160.617 g | 160.6166078 |
| 250 mL | 200.771 g | 200.7707598 |
| 500 mL | 401.542 g | 401.5415196 |
Based on 190 g per cup of uncooked brown rice. One millilitre of uncooked brown rice is 0.80308304 grams.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 190 g | 6.7 oz | 236.6 mL |
| 3/4 cup | 142.5 g | 5.03 oz | 177.4 mL |
| 2/3 cup | 126.7 g | 4.47 oz | 157.7 mL |
| 1/2 cup | 95 g | 3.35 oz | 118.3 mL |
| 1/3 cup | 63.33 g | 2.23 oz | 78.86 mL |
| 1/4 cup | 47.5 g | 1.68 oz | 59.15 mL |
| 1 tbsp | 11.88 g | 0.419 oz | 14.79 mL |
| 1 tsp | 3.958 g | 0.14 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) |
|---|---|---|---|
| Uncooked quinoa | 170 g | 5.997 oz | 0.7185 |
| Dry couscous | 170 g | 5.997 oz | 0.7185 |
| Uncooked white rice | 185 g | 6.526 oz | 0.7819 |
| Uncooked brown rice (this page) | 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 |
| Arborio rice | 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.