Barley is one of the oldest cultivated grains and a surprisingly useful source of plant protein. This barley protein per 100g calculator tells you exactly how many grams of protein are in a serving, whether you are weighing raw pearled barley, hulled barley, barley flakes, barley flour, or cooked barley. Just enter the amount, choose the form, and the calculator applies the correct protein density for that variety.
Because protein values vary widely between raw and cooked barley, the calculator includes separate profiles for each. Cooking adds water and dilutes the macronutrient concentration, so a 100 g portion of cooked barley naturally contains less protein than 100 g of dry grain. The tool also gives you the option to enter a daily protein target, which makes it easier to plan balanced meals, post-workout recovery, or a higher-protein plant-based diet.
Use the quick-fill buttons for common portions or type in your own gram or ounce weight. You will get a clear protein result, a per-100g reference line, and a short step-by-step breakdown so you can see exactly how the number was calculated.
🥣 Barley Protein Per 100g Calculator
Find out how much protein is in any serving of barley.
Step-by-Step Guide
Using the calculator takes less than ten seconds once you know the weight of your barley. Start by choosing the form that matches what you are preparing. The calculator holds separate nutrition profiles for raw pearled barley, raw hulled barley, rolled barley flakes, whole-grain barley flour, and the cooked versions of pearled and hulled barley. Next, type the amount into the serving size field. You can enter the weight in grams or ounces; the unit dropdown lets you switch between the two. If you want to know how your serving fits into your overall protein intake, enter your daily protein target in the optional field. Then click the blue Calculate protein button.
The results area shows three pieces of information: the total grams of protein in your serving, a label stating which barley form was used, and a short calculation breakdown that walks through the conversion. The reference line under the barley form dropdown also updates automatically so you can see the protein content per 100 g at a glance. You can reset all fields with the Reset button or use the quick-fill chips for common portions such as 30 g, 50 g, 100 g, 200 g, and 1 oz.
Formula Explained
The math behind the calculator is simple and transparent. Every barley profile has a protein value expressed in grams per 100 g of edible portion. To find the protein in your serving, the calculator converts your amount to grams if necessary, then applies this formula:
Protein = (serving weight in grams ÷ 100) × protein per 100 g
For example, if you eat 80 g of raw pearled barley, the calculation is (80 ÷ 100) × 9.91 = 7.93 g protein. When you enter ounces, the tool first multiplies by 28.35 to convert to grams, then uses the same formula.
Why do raw and cooked barley look so different? Cooking barley in water adds moisture and increases the total weight of the food without adding protein. A 100 g portion of cooked barley therefore contains the protein from a smaller original amount of raw grain, so the protein density drops. This is not a loss of protein; it is simply a dilution effect. Tracking by dry weight before cooking is usually the most accurate method.
Protein Content by Barley Type
The table below summarizes the approximate protein values used in the calculator. These are based on typical USDA FoodData Central entries and can vary slightly between brands, harvests, and processing methods.
| Barley form | Protein per 100 g | Notes |
|---|---|---|
| Pearled barley, raw | 9.91 g | The most common form; pearling removes some outer bran layers. |
| Hulled barley, raw | 12.48 g | Only the inedible outer hull is removed, leaving more protein. |
| Barley flakes, raw | 11.0 g | Rolled and flattened; density can vary by thickness. |
| Barley flour, whole-grain | 10.5 g | Ground whole barley, often used in baking and pancakes. |
| Pearled barley, cooked | 2.26 g | Boiled in water; a 100 g portion contains more water weight. |
| Hulled barley, cooked | 3.58 g | Higher protein than cooked pearled because the grain retains more protein. |
Values are approximate and intended for meal planning, not for clinical nutrition labeling.
Worked Examples
Here are three common scenarios to show how the calculator behaves.
Example 1: 50 g raw pearled barley. Using the raw pearled profile, (50 ÷ 100) × 9.91 = 4.96 g protein. If your daily target is 50 g, this supplies about 9.9 percent of the target.
Example 2: 1 cup of cooked hulled barley. A typical cup of cooked hulled barley weighs about 157 g. With 3.58 g protein per 100 g, the result is (157 ÷ 100) × 3.58 = 5.62 g protein.
Example 3: 4 oz of barley flour. First convert ounces to grams: 4 × 28.35 = 113.4 g. Then calculate (113.4 ÷ 100) × 10.5 = 11.91 g protein. This shows why high-protein baking flours can add meaningful protein to breads and pancakes.
Tips & Best Practices
- Weigh barley in its dry, uncooked form whenever possible. Dry weights are more consistent and make it easier to compare portions across different days.
- If you are logging a cooked portion in a calorie app, use the cooked barley profile in this calculator or enter it as a cooked weight. Mixing dry weights with cooked calorie entries is one of the most common tracking mistakes.
- Barley protein is incomplete, meaning it is relatively low in lysine. Pair barley with legumes, dairy, eggs, or a small serving of animal protein to round out the amino acid profile.
- Use the optional daily target field to put your protein number into context. A simple 0.8 g per kg of body weight is a common baseline for sedentary adults, while active individuals and older adults often need more.
- Different brands of barley flakes and barley flour can have slightly different protein densities, so check the nutrition label when you need high precision.
For the strongest protein contribution, choose hulled raw barley over pearled barley and measure it dry. Hulled barley keeps more of the bran and protein-rich outer endosperm, and dry measurement avoids the dilution from cooking water.
Frequently Asked Questions
Is barley a good source of protein? Barley provides a useful amount of plant protein for a grain, especially in its hulled form. A 100 g serving of raw hulled barley contains about 12.5 g of protein, which is more than white rice and comparable to several other whole grains. However, it is not a complete protein on its own; combining it with other protein sources is advised for a full amino acid profile.
Why does cooked barley show so much less protein per 100 g? Cooking barley does not destroy protein; it adds water. Because the serving weight increases while the protein stays the same, the concentration per 100 g drops. This is why nutrition databases list separate values for raw and cooked grains.
Can I use this calculator for pot barley or malted barley? Pot barley and malted barley can have slightly different protein values than the varieties listed here. If you are using a specialty product, check the package's nutrition label and manually adjust the calculation. The general formula remains: (weight in grams ÷ 100) × protein per 100 g.
How do I calculate protein for a barley salad or mixed dish? Weigh the dry barley before cooking and note how many servings the finished dish yields. Divide the total raw barley protein by the number of servings, then add the protein from other ingredients such as beans, cheese, or chicken. For full nutrition data, refer to USDA FoodData Central.