One cup of uncooked quinoa is 0.37478585 pounds, so converting cups of uncooked quinoa to pounds means multiplying by 0.37478585. That factor is specific to this ingredient — it comes from its density, not from any relationship between the two units.
The density behind that figure is 0.71855 g per mL, against 1.00 for water. A cup of water weighs 236.6 g and a cup of uncooked quinoa weighs 170 g, so this ingredient is 71.85% as heavy as the same volume of water — the single fact the whole page rests on.
A cup of uncooked quinoa is 170 g when it is measured the standard way, but how it gets into the cup changes the answer: between about 153 g and 204 g covers the range from lightly spooned to firmly packed. That 20% spread is larger than most of the adjustments recipes fuss over, and it disappears entirely the moment the ingredient is weighed instead.
Pounds are how uncooked quinoa is bought rather than cooked, so this is the bag-size arithmetic: one pound is 2.668 cups, a 2 lb pack is 5.336 cups and a 5 lb sack is 13.34. That last figure is the one worth knowing before a large bake — it tells you whether one bag covers the recipe.
What the number depends on: Dry and rinsed. The seeds are small and round, so they pack closely.
The formula
cups- The amount of uncooked quinoa you are converting, in cups
0.374785845714- Pounds per cup for uncooked quinoa, from its density of 0.71855 g/mL
pounds- The equivalent quantity in pounds
How it works, step by step
- Enter the quantity in cups.
- It is multiplied by 0.374785845714, the pounds-per-cup figure for uncooked quinoa.
- The result appears in pounds, with a second reading in g beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
1/3 cup of uncooked quinoa in pounds
A recipe calling for 1/3 cup of uncooked quinoa needs 0.124929 pounds on the scale. The arithmetic is 0.333333 × 0.37478585 = 0.12492862, and halving the recipe halves the weight to 0.0624643 pounds.
3/4 cup of uncooked quinoa in pounds
A recipe calling for 3/4 cup of uncooked quinoa needs 0.281089 pounds on the scale. The arithmetic is 0.75 × 0.37478585 = 0.28108938, and halving the recipe halves the weight to 0.140545 pounds.
3 cup of uncooked quinoa in pounds
Take 3 cup of uncooked quinoa: 3 × 0.37478585 gives 1.12436 pounds. Doubling the batch takes it to 2.24872 pounds, because the relationship is a straight proportion once the density is known.
How to read your score
Frequently asked questions
How many pounds are in 1 cup of uncooked quinoa?
One cup of uncooked quinoa is 0.37478585 pounds. Half that quantity is 0.187393 pounds and double it is 0.749572 pounds, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of uncooked quinoa not 236 g like water?
Because weight per cup depends on what is in the cup. Uncooked quinoa has a density of 0.71855 g per mL where water has 1.00, so a cup of it weighs 170 g rather than 236.6 g. That is a difference of 66.6 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 quinoa by roughly 20% — about 17 g either side of 170 g — because dry and rinsed. Weighing removes the question entirely.
Is a fluid ounce of uncooked quinoa 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 quinoa weighs 0.7496 oz, so the two readings differ by 25%. 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 quinoa would weigh 179.64 g instead of 170 g — 9.64 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?
A scale, if the result matters. Volume measuring carries a spread of about 20% for uncooked quinoa — roughly 34 g on a 170 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.
How many cups of uncooked quinoa is 1 lb?
1 lb of uncooked quinoa is 2.6682 cups — 2.66819 cups to one pound, so 1 × 2.66819 = 2.6682. Going that way is a division by 0.374786, or a multiplication by 2.66819 if you prefer.
Uncooked quinoa in cups and pounds
| Cups | Pounds | Unrounded |
|---|---|---|
| 1/8 cup | 0.0468482 lb | 0.04684823071 |
| 1/4 cup | 0.0936965 lb | 0.09369646143 |
| 1/3 cup | 0.124929 lb | 0.1249286152 |
| 1/2 cup | 0.187393 lb | 0.1873929229 |
| 2/3 cup | 0.249857 lb | 0.2498572305 |
| 3/4 cup | 0.281089 lb | 0.2810893843 |
| 1 cup | 0.374786 lb | 0.3747858457 |
| 1 1/2 cup | 0.562179 lb | 0.5621787686 |
| 2 cup | 0.749572 lb | 0.7495716914 |
| 3 cup | 1.12436 lb | 1.124357537 |
| 4 cup | 1.49914 lb | 1.499143383 |
Based on 170 g per cup of uncooked quinoa. One cup of uncooked quinoa is 0.37478585 pounds.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 170 g | 6 oz | 236.6 mL |
| 3/4 cup | 127.5 g | 4.5 oz | 177.4 mL |
| 2/3 cup | 113.3 g | 4 oz | 157.7 mL |
| 1/2 cup | 85 g | 3 oz | 118.3 mL |
| 1/3 cup | 56.67 g | 2 oz | 78.86 mL |
| 1/4 cup | 42.5 g | 1.5 oz | 59.15 mL |
| 1 tbsp | 10.62 g | 0.375 oz | 14.79 mL |
| 1 tsp | 3.542 g | 0.125 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) |
|---|---|---|---|
| Potato starch | 160 g | 5.644 oz | 0.6763 |
| Steel-cut oats | 160 g | 5.644 oz | 0.6763 |
| Semolina | 167 g | 5.891 oz | 0.7059 |
| Uncooked quinoa (this page) | 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 | 190 g | 6.702 oz | 0.8031 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.