Quinoa stands out among plant foods because it is a complete protein, meaning it provides all nine essential amino acids your body cannot make on its own. However, the protein content looks very different depending on whether you weigh the grain dry or after cooking, since cooked quinoa absorbs roughly three times its weight in water.
This quinoa protein per 100g calculator uses standard USDA reference values: dry/uncooked quinoa contains about 14.1 g of protein per 100 g, while cooked quinoa contains about 4.4 g per 100 g. Choose your ingredient state, enter the weight in grams, and the tool instantly returns the protein in your portion plus the equivalent amount in the other form.
It is built for meal preppers, plant-based eaters, athletes, and anyone tracking macros who wants quick, accurate quinoa protein numbers without digging through nutrition databases.
🥣 Enter Your Quinoa Amount
Choose dry or cooked, then enter the weight in grams.
Enter a weight and press Calculate Protein.
Step-by-Step Guide
Use a kitchen scale that measures grams and decide whether you are logging your quinoa as dry or cooked. The difference is not cosmetic: 100 g of dry quinoa and 100 g of cooked quinoa contain very different amounts of protein because cooked quinoa includes absorbed water.
In the calculator, select Dry / uncooked or Cooked, then enter the weight in grams. Press Calculate Protein to see three numbers: the protein in your portion, the standard per-100g value, and an approximate converted weight in the other form. The preset buttons let you jump to common portions such as 100 g dry, 1 cup dry (170 g), 1 cup cooked (185 g), and ½ cup cooked (93 g). Use Copy Result to paste the numbers into your food log.
How the Protein Values Are Calculated
The calculator applies a simple proportion: protein grams = weight in grams × protein per 100 g ÷ 100. The reference values come from the USDA FoodData Central nutrient database. For uncooked quinoa the average protein content is 14.1 g per 100 g; for cooked quinoa it is 4.4 g per 100 g.
Why such a large gap? Dry quinoa absorbs roughly two to three times its weight in water during cooking. The grain's protein is already there; it is simply diluted by water in the final cooked product. If you cook 100 g of dry quinoa, the cooked batch typically weighs around 300–350 g, and that entire batch still contains roughly 14 g of protein. But if you then weigh out 100 g from that batch, you are taking only a third of the batch, so you get about 4–5 g of protein.
For more detail, see the USDA FoodData Central entry for quinoa and the Wikipedia overview of quinoa.
Worked Examples
Example 1: Dry quinoa. You meal-prep 45 g of dry quinoa. Protein = 45 × 14.1 ÷ 100 = 6.35 g. Once cooked, that portion expands to roughly 140 g cooked, but the protein stays at about 6.3 g.
Example 2: Cooked quinoa. You plate 150 g of cooked quinoa from the fridge. Protein = 150 × 4.4 ÷ 100 = 6.60 g. In dry terms, that is equivalent to about 150 × 4.4 ÷ 14.1 = 46.8 g of dry quinoa.
These examples show why consistency matters more than perfection. As long as you always log the same state, your daily protein totals will be internally consistent.
Quinoa Protein Quick Reference Table
| Form | Serving | Weight | Protein |
|---|---|---|---|
| Dry / uncooked | 100 g | 100 g | 14.1 g |
| Dry / uncooked | 1 cup | 170 g | 24.0 g |
| Dry / uncooked | ¼ cup | 42.5 g | 6.0 g |
| Cooked | 100 g | 100 g | 4.4 g |
| Cooked | 1 cup | 185 g | 8.1 g |
| Cooked | ½ cup | 93 g | 4.1 g |
Values are rounded averages from USDA data and can vary slightly with variety, growing conditions, and cooking time.
Tips for Counting Quinoa Protein
- Weigh it dry for greatest accuracy, because cooked water content can vary with cooking time, rinsing, and how long it sits.
- If you track cooked, use the calculator's conversion to estimate the dry-equivalent if your app expects dry weights.
- Rinse quinoa before cooking to remove saponins, but do not subtract protein; rinsing does not wash away meaningful amounts of protein.
- White, red, black, and tricolor quinoa have broadly similar protein values, so 14.1 g per 100 g is a good default for all common varieties.
- Seasoned or instant quinoa products may contain additional protein from other ingredients; check the package label for the exact per-100g number.
Frequently Asked Questions
Is quinoa a complete protein? Yes. Quinoa contains all nine essential amino acids in meaningful amounts, which is uncommon for plant foods. It is particularly notable for its lysine content, an amino acid often limited in grains.
Why does protein per 100g drop after cooking? Cooking adds water, so 100 g of cooked quinoa is mostly water. The absolute protein in the pot does not change, but the concentration per 100 g falls because the water increases the total weight.
Should I track dry or cooked quinoa? Either works if you are consistent. Dry weights are more reproducible and match most nutrition database entries. Cooked weights are convenient when you are eating a portion you already prepared. This calculator lets you switch between the two without guessing.
Does quinoa protein quality change when cooked? Cooking can improve digestibility and make amino acids more available. It does not destroy the protein in any meaningful way under normal cooking times.