Wine is better known for its alcohol and antioxidant content than for protein, but if you're tracking macros, every gram counts. This wine protein per 100g calculator estimates how much protein you get from red, white, rosé, sparkling, or dessert wine based on the amount you plan to drink. Convert grams, milliliters, fluid ounces, glasses, or bottles into a protein figure using standard USDA nutrition data.
Whether you're following a high-protein meal plan, logging alcohol in a calorie app, or comparing beverages for a low-carb lifestyle, this tool gives quick answers without digging through nutrition labels. It also shows the serving weight, protein per 100 ml, and an optional daily value percentage so you can see how wine fits into your overall daily protein target. Use the preset buttons for common serving sizes, then adjust to match your glass or bottle.
🍷 Wine Protein Calculator
How to Use This Calculator
Start by selecting the wine type that matches your drink. Each type is assigned a protein value from USDA food composition data. Next, enter a serving amount and choose the unit that fits how you measure your wine: grams, milliliters, US fluid ounces, standard 150 ml glasses, or 750 ml bottles. If you want to see how much of your daily protein target the wine covers, tick the “Show % Daily Value (50 g reference)” box before calculating.
The calculator converts every volume unit to grams using a wine density of about 0.99 g/ml, then applies the protein concentration for the selected wine type. Press Calculate protein to see the result. Use the quick-fill buttons to load a 100 g sample, a 150 ml glass, a 375 ml half-bottle, or a full 750 ml bottle. The reset button clears all fields and result boxes.
Tip: Wine’s protein is extremely small, so the result is shown to three decimal places. Round it to two decimals in your food log to avoid false precision.
Protein Values by Wine Type
Most table wines contain around 0.07 g of protein per 100 g. Dessert wines tend to be slightly higher because they are made from riper grapes and often have more solids. The table below shows typical values used in the calculator.
| Wine type | Typical protein (g / 100 g) | Rough protein per 150 ml glass |
|---|---|---|
| Red table wine | 0.07 | 0.10 g |
| White table wine | 0.07 | 0.10 g |
| Rosé | 0.07 | 0.10 g |
| Sparkling wine | 0.07 | 0.10 g |
| Dessert wine | 0.10 | 0.15 g |
Values are per 100 g of wine, not 100 ml. Because wine weighs slightly less than water — roughly 99 g per 100 ml — the calculator accounts for this difference when you enter volume.
These figures come from USDA FoodData Central and represent averages across many brands and vintages. Actual protein can vary with grape variety, growing region, winemaking technique, and fining agents.
The Math Explained
The calculation follows a simple formula: Protein = serving weight in grams × protein per 100 g ÷ 100. For volume input, convert the served volume to grams using density: weight (g) = volume (ml) × 0.99.
For example, a 750 ml bottle of red wine has a weight of 750 × 0.99 = 742.5 g. The protein is then 742.5 × 0.07 ÷ 100 = 0.52 g. This works for any serving size. The daily value percentage is calculated as protein ÷ 50 g reference × 100.
Formulas used:
1. Convert to grams if needed.
2. Protein = grams × (protein per 100 g / 100).
3. % Daily Value = protein / 50 g × 100.
Worked Examples
Example 1 — Full bottle of red wine: Enter 750 ml, unit = ml, type = red table wine. Weight = 742.5 g. Protein = 742.5 × 0.07 / 100 = 0.52 g. That is about one-tenth of a gram of protein per typical glass.
Example 2 — Glass of white wine: Enter 150 ml, unit = ml, type = white table wine. Weight = 148.5 g. Protein = 148.5 × 0.07 / 100 = 0.10 g.
Example 3 — 100 g dessert wine: Enter 100 g, unit = g, type = dessert wine. Protein = 100 × 0.10 / 100 = 0.10 g.
As the examples show, even a full bottle of table wine delivers less than 1 g of protein — far below the 1–3 g found in a typical slice of bread.
Why Wine Contains So Little Protein
Grapes do contain amino acids and peptides, but most are consumed by yeast during alcoholic fermentation. Yeast uses nitrogen compounds to build new cells, so the finished wine retains only trace amounts. In addition, winemakers often use fining agents such as bentonite, casein, or isinglass to clarify wine, and these treatments actively remove suspended proteins. This is why a standard wine label does not list protein as a meaningful macronutrient.
Protein levels can still vary. Wines made from ripe grapes, wines that undergo less fining, or wines that sit on lees for a long time may contain marginally more protein. However, the differences are too small to affect your daily protein target. If you are tracking protein from other foods, tools like radish protein calculator or sausage protein calculator can help you compare more significant sources side by side.
Frequently Asked Questions
Does red wine have more protein than white wine? No. Both table wines typically contain about 0.07 g per 100 g. The wine type matters less than the serving size; a larger pour simply contains slightly more protein.
Should I log wine protein in my macro tracker? If you are counting every gram, yes — but the contribution is tiny. A 150 ml glass contributes roughly 0.1 g of protein, about 0.2% of a 50 g daily target. It won’t materially change your macro totals.
Why does the calculator use 100 g instead of 100 ml? Nutrition databases list protein per 100 g of food. Because wine density is close to 1 g/ml, the two are similar, but using weight is more accurate for macro calculations.