🥣 Uncooked brown rice: Grams to Cups

One gram of uncooked brown rice is 0.0052631579 cups. Half that quantity is 0.00263158 cups and double it is 0.0105263 cups, so the figure scales straight up and down — there is no offset in this conversion, only the factor.

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.

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.

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.

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.

A scale, if the result matters. Volume measuring carries a spread of about 20% for uncooked brown rice — roughly 38 g on a 190 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.

2 cup of uncooked brown rice comes to 380 g, or 380 grams. This page runs that calculation in reverse — enter a weight and it returns the volume — and the cups-to-grams page does it in the direction the question is usually asked.