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 perfect baking results.
Grains & Rice Weight to Cup Calculator
Select any ingredient from the grains & rice category to calculate exact 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 per Cup | 100g in Cups | 1 Cup in Grams | Detailed Guide |
|---|---|---|---|---|
| Unprocessed Wheat Bran | 58g | 58g | View Wheat Bran → | |
| Quick-Cooking Oats | 85g | 85g | View Quick-Cooking Oats → | |
| Rolled Oats (Old-Fashioned) | 90g | 90g | View Rolled Oats (Old-Fashioned) → | |
| Pure Oat Bran | 94g | 94g | View Oat Bran → | |
| Raw Wheat Germ | 112g | 112g | View Wheat Germ → | |
| Uncooked Ditalini Pasta | 140g | 140g | View Ditalini → | |
| Yellow Cornmeal | 150g | 150g | View Yellow Cornmeal → | |
| Dry Bulgur Wheat | 150g | 150g | View Bulgur → | |
| Dry White Hominy Grits | 156g | 156g | View Grits → | |
| Polenta (Coarse) | 160g | 160g | View Polenta (Coarse) → | |
| Uncooked Wild Rice | 160g | 160g | View Wild Rice → | |
| Coarse Yellow Polenta | 160g | 160g | View Polenta → | |
| Roasted Buckwheat Kasha | 165g | 165g | View Kasha → | |
| Uncooked Quinoa | 170g | 170g | View Uncooked Quinoa → | |
| Uncooked Steel-Cut Oats | 170g | 170g | View Steel-Cut Oats → | |
| Uncooked Wheat Couscous | 170g | 170g | View Couscous → | |
| Uncooked Pearled Farro | 170g | 170g | View Farro → | |
| Raw Buckwheat Groats | 170g | 170g | View Buckwheat Groats → | |
| Uncooked Pastina Pasta | 170g | 170g | View Pastina → | |
| Uncooked Pearl Couscous | 175g | 175g | View Pearl Couscous → | |
| Whole Rye Berries | 175g | 175g | View Rye Berries → | |
| Whole Spelt Berries | 175g | 175g | View Spelt Berries → | |
| Whole Oat Groats | 180g | 180g | View Oat Groats → | |
| Whole Hard Red Wheat Berries | 180g | 180g | View Wheat Berries → | |
| Whole Kamut Grain | 180g | 180g | View Kamut Grain → | |
| Hulled Whole Barley | 184g | 184g | View Hulled Barley → | |
| Uncooked White Rice | 185g | 185g | View Uncooked White Rice → | |
| Uncooked Basmati Rice | 185g | 185g | View Basmati Rice → | |
| Uncooked Jasmine Rice | 185g | 185g | View Jasmine Rice → | |
| Uncooked Orzo Pasta | 185g | 185g | View Orzo → | |
| Uncooked Brown Rice | 190g | 190g | View Uncooked Brown Rice → | |
| Uncooked Arborio Rice | 190g | 190g | View Arborio Rice → | |
| Uncooked Calrose Sushi Rice | 190g | 190g | View Sushi Rice → | |
| Whole Grain Sorghum | 190g | 190g | View Sorghum Grain → | |
| Whole Brown Teff Grain | 190g | 190g | View Teff Grain → | |
| Whole Amaranth Grain | 195g | 195g | View Amaranth Grain → | |
| Whole Hulless Millet Grain | 200g | 200g | View Millet Grain → | |
| Pearled Barley | 200g | 200g | View 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:
All Grains & Rice Ingredient Guides
Looking for the Reverse Direction?
Convert volumetric cups of grains & rice back into exact gram weights:
Go to Grains & Rice Cups to Grams Hub→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 weigh more than dry rice?
Yes, rice absorbs 2 to 2.5 times its weight in water during cooking; 185g of dry rice yields ~450g of cooked rice.
What is the gram weight of 1 cup of cornmeal?
Medium-grind yellow cornmeal weighs 150 grams per US customary cup.