Grains & Rice Grams to Cups Converter
Convert rolled oats, uncooked white rice, brown rice, quinoa, couscous, and cornmeal from grams to cups.
Direct Answer
Not all grains and rice weigh the same. A cup of uncooked white rice is 185g, rolled oats is 90g, and raw quinoa is 170g. Pick your exact grain below.
Because different ingredients within the grains & rice category have varying particle sizes and moisture levels, measuring by weight in grams ensures consistent baking results.
Grains & Rice Weight to Cup Calculator
Select any ingredient from the grains & rice category to calculate cup and tablespoon conversions.
Custom package weights override standard database densities for this session without altering official database records.
Grains & Rice Density & Weight Comparison Table
Every ingredient in the grains & rice category sorted by bulk density (grams per cup).
| Ingredient | Grams/Cup | 100g in Cups | 1 Cup in Grams | Detailed Guide |
|---|---|---|---|---|
| Unprocessed Wheat Bran | 58g | 58g | Wheat Bran → | |
| Quick-Cooking Oats | 85g | 85g | Quick-Cooking Oats → | |
| Rolled Oats (Old-Fashioned) | 90g | 90g | Rolled Oats → | |
| Pure Oat Bran | 94g | 94g | Oat Bran → | |
| Raw Wheat Germ | 112g | 112g | Wheat Germ → | |
| Uncooked Ditalini Pasta | 140g | 140g | Ditalini → | |
| Yellow Cornmeal | 150g | 150g | Yellow Cornmeal → | |
| Dry Bulgur Wheat | 150g | 150g | Bulgur → | |
| Dry White Hominy Grits | 156g | 156g | Grits → | |
| Polenta (Coarse) | 160g | 160g | Polenta → | |
| Uncooked Wild Rice | 160g | 160g | Wild Rice → | |
| Coarse Yellow Polenta | 160g | 160g | Coarse Polenta → | |
| Roasted Buckwheat Kasha | 165g | 165g | Kasha → | |
| Uncooked Quinoa | 170g | 170g | Quinoa → | |
| Uncooked Steel-Cut Oats | 170g | 170g | Steel-Cut Oats → | |
| Uncooked Wheat Couscous | 170g | 170g | Couscous → | |
| Uncooked Pearled Farro | 170g | 170g | Farro → | |
| Raw Buckwheat Groats | 170g | 170g | Buckwheat Groats → | |
| Uncooked Pastina Pasta | 170g | 170g | Pastina → | |
| Uncooked Pearl Couscous | 175g | 175g | Pearl Couscous → | |
| Whole Rye Berries | 175g | 175g | Rye Berries → | |
| Whole Spelt Berries | 175g | 175g | Spelt Berries → | |
| Whole Oat Groats | 180g | 180g | Oat Groats → | |
| Whole Hard Red Wheat Berries | 180g | 180g | Wheat Berries → | |
| Whole Kamut Grain | 180g | 180g | Kamut Grain → | |
| Hulled Whole Barley | 184g | 184g | Hulled Barley → | |
| Uncooked White Rice | 185g | 185g | White Rice → | |
| Uncooked Basmati Rice | 185g | 185g | Basmati Rice → | |
| Uncooked Jasmine Rice | 185g | 185g | Jasmine Rice → | |
| Uncooked Orzo Pasta | 185g | 185g | Orzo → | |
| Uncooked Brown Rice | 190g | 190g | Uncooked Brown Rice → | |
| Uncooked Arborio Rice | 190g | 190g | Arborio Rice → | |
| Uncooked Calrose Sushi Rice | 190g | 190g | Sushi Rice → | |
| Whole Grain Sorghum | 190g | 190g | Sorghum Grain → | |
| Whole Brown Teff Grain | 190g | 190g | Teff Grain → | |
| Whole Amaranth Grain | 195g | 195g | Amaranth Grain → | |
| Whole Hulless Millet Grain | 200g | 200g | Millet Grain → | |
| Pearled Barley | 200g | 200g | Pearled Barley → |
Density Dynamics in Grains & Rice
Grain cup weight depends on kernel geometry, moisture content, processing style, and interstitial void space. Whole grain white rice consists of dense, polished starch kernels that pack tightly, yielding 185 grams per dry cup. Rolled oats are steamed oat groats flattened by heavy rollers; their large irregular flaked shape creates massive air gaps in a measuring cup, resulting in a light density of just 90 grams per cup. Steel-cut oats bypass rolling and are chopped into dense grain nubs, doubling cup weight to 170-180g. Quinoa seeds are tiny round spheres that settle with minimal void space, weighing 170 grams per dry cup.
Grains & Rice Substitution Rules: Weight vs Volume
Never substitute oats or rice by cup volume in baked goods. Swapping 1 cup of rolled oats (90g) for 1 cup of steel-cut oats (170g) nearly doubles the grain weight, absorbing all batter liquid and ruining texture. Always substitute grains by equal dry weight in grams and adjust cooking liquid accordingly.
Common Gram Amounts to Cups Matrix (Grains & Rice)
Quick conversion matrix for top grains & rice ingredients across standard recipe weights:
Grains & Rice Cups to Grams Reverse Table
Standard cup volume weights in grams (¼ cup, ½ cup, ¾ cup, 1 cup) for grains & rice ingredients:
| Ingredient | ¼ Cup | ½ Cup | ¾ Cup | 1 Cup | Guide |
|---|---|---|---|---|---|
| Unprocessed Wheat Bran | 14.5g | 29.0g | 43.5g | 58g | Wheat Bran → |
| Quick-Cooking Oats | 21.3g | 42.5g | 63.8g | 85g | Quick-Cooking Oats → |
| Rolled Oats (Old-Fashioned) | 22.5g | 45.0g | 67.5g | 90g | Rolled Oats → |
| Pure Oat Bran | 23.5g | 47.0g | 70.5g | 94g | Oat Bran → |
| Raw Wheat Germ | 28.0g | 56.0g | 84.0g | 112g | Wheat Germ → |
| Uncooked Ditalini Pasta | 35.0g | 70.0g | 105.0g | 140g | Ditalini → |
| Yellow Cornmeal | 37.5g | 75.0g | 112.5g | 150g | Yellow Cornmeal → |
| Dry Bulgur Wheat | 37.5g | 75.0g | 112.5g | 150g | Bulgur → |
| Dry White Hominy Grits | 39.0g | 78.0g | 117.0g | 156g | Grits → |
| Polenta (Coarse) | 40.0g | 80.0g | 120.0g | 160g | Polenta → |
| Uncooked Wild Rice | 40.0g | 80.0g | 120.0g | 160g | Wild Rice → |
| Coarse Yellow Polenta | 40.0g | 80.0g | 120.0g | 160g | Coarse Polenta → |
| Roasted Buckwheat Kasha | 41.3g | 82.5g | 123.8g | 165g | Kasha → |
| Uncooked Quinoa | 42.5g | 85.0g | 127.5g | 170g | Quinoa → |
| Uncooked Steel-Cut Oats | 42.5g | 85.0g | 127.5g | 170g | Steel-Cut Oats → |
| Uncooked Wheat Couscous | 42.5g | 85.0g | 127.5g | 170g | Couscous → |
| Uncooked Pearled Farro | 42.5g | 85.0g | 127.5g | 170g | Farro → |
| Raw Buckwheat Groats | 42.5g | 85.0g | 127.5g | 170g | Buckwheat Groats → |
| Uncooked Pastina Pasta | 42.5g | 85.0g | 127.5g | 170g | Pastina → |
| Uncooked Pearl Couscous | 43.8g | 87.5g | 131.3g | 175g | Pearl Couscous → |
| Whole Rye Berries | 43.8g | 87.5g | 131.3g | 175g | Rye Berries → |
| Whole Spelt Berries | 43.8g | 87.5g | 131.3g | 175g | Spelt Berries → |
| Whole Oat Groats | 45.0g | 90.0g | 135.0g | 180g | Oat Groats → |
| Whole Hard Red Wheat Berries | 45.0g | 90.0g | 135.0g | 180g | Wheat Berries → |
| Whole Kamut Grain | 45.0g | 90.0g | 135.0g | 180g | Kamut Grain → |
Showing top 25 ingredients. See complete density table above for all 38 items.
Related Conversion Tools, Guides & Categories
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Frequently Asked Questions: Grains & Rice Conversions
How many grams of uncooked white rice are in 1 cup?
One US cup of dry, uncooked long-grain white rice weighs 185 grams.
Why do rolled oats weigh so little per cup?
Rolled oats are flattened flakes with irregular edges that create large air pockets, resulting in only 90 grams per cup.
How many grams is 1 cup of dry quinoa?
One US cup of raw quinoa seeds weighs 170 grams.
Does cooked rice or grain weigh the same as uncooked dry weight?
No, raw grains absorb 2 to 3 times their weight in water during cooking: 1 cup raw white rice (185g) yields ~3 cups cooked rice (~500g), 1 cup raw oats (90g) yields ~2 cups cooked oatmeal (~240g), and 1 cup raw quinoa (170g) yields ~3 cups cooked (~420g). Always measure dry grains by scale weight before adding liquid.
How many grams is 1 tablespoon of chia or flax seeds?
Chia seeds weigh approximately 10.0 grams per tablespoon (160g/cup), whole flaxseeds weigh 9.3g per tablespoon (149g/cup), and sesame seeds weigh 9.1g per tablespoon (145g/cup).
What is the gram weight of 1 cup of cornmeal?
Medium-grind yellow cornmeal weighs 150 grams per US customary cup.