Most classic colas contain 0 g protein per 100 g, so the answer is often zero — but that doesn’t make the question pointless. This calculator converts any serving size — millilitres, fluid ounces, cups, cans or bottles — into a weight-based protein figure, so you can compare cola against other foods on the same 100 g scale used by nutrition labels and the USDA FoodData Central database.
You can choose a preset cola type (classic, diet, zero sugar, caffeine-free) or enter a custom protein value straight from a product label. The tool also estimates the drink’s mass using the typical density of carbonated cola, giving you a more accurate protein-per-100 g to total-serving conversion.
It’s built for calorie and macro trackers, label-readers, and anyone curious about where their protein is actually coming from.
🥤 Cola Protein Per 100g Calculator
Convert any cola serving into a 100 g protein comparison.
How It Works
Nutrition labels usually list protein per 100 g for foods and per 100 ml for drinks, which can make comparisons awkward. This calculator normalises everything to a 100 g basis. First, the serving size you enter is converted to millilitres using the unit conversion built into the selector. Next, the millilitres are multiplied by the drink's density to estimate its mass in grams. Finally, that mass is multiplied by the protein-per-100-g value and divided by 100 to give the total protein in your serving.
Worked Examples
Example 1: A 355 ml can of classic cola with 0 g protein per 100 g. Volume = 355 ml, mass = 355 × 1.04 = 369.2 g, protein = 0 g total. Classic cola contributes no meaningful protein.
Example 2: A 500 ml bottle of a protein-enriched cola with 1.2 g protein per 100 g. Mass = 500 × 1.04 = 520 g, protein = 1.2 × 520 ÷ 100 = 6.24 g total. This is how the same drink can look different on a per-serving vs per-100-g basis.
Reference Data
| Serving | Volume | Mass at 1.04 g/ml |
|---|---|---|
| 1 small can | 330 ml | 343.2 g |
| 1 standard can | 355 ml | 369.2 g |
| 1 cup | 236.6 ml | 246.1 g |
| 1 half-litre bottle | 500 ml | 520.0 g |
| 1 litre | 1000 ml | 1040.0 g |
Tips & Best Practices
- Always read the label carefully: some colas are labelled per 100 ml, others per serving, and others per 100 g. Convert to the same basis before comparing.
- If you are tracking macros, treat a classic or diet cola as contributing 0 g protein unless the label explicitly states otherwise.
- For the most accurate result, enter the exact protein value printed on the product label rather than relying on a generic preset.
- Density can vary slightly with temperature and carbonation, but 1.04 g/ml is a reliable average for cola at room temperature.
- Use the custom option for protein colas, cola mixed drinks, or any beverage where the label gives a non-zero protein value.
Frequently Asked Questions
Why do most colas show 0 g protein per 100 g?
Traditional cola formulas contain no significant protein ingredients. Caramel colour, phosphoric acid, sweeteners and flavourings contribute negligible protein, so food labels round the value to 0 g.
Should I use per 100 g or per 100 ml?
Most drink labels in the US use per serving, while many international labels use per 100 ml. The 100 g basis is used here because it matches how protein is compared across solid foods and how databases like USDA FoodData Central report nutrients.
Does diet or zero sugar cola contain protein?
No. Replacing sugar with artificial or plant-based sweeteners does not add protein. Diet and zero sugar colas normally still contain 0 g protein per 100 g.
Additional Resources
- USDA FoodData Central — official food composition data for colas and other beverages.
- FDA Nutrition Facts Label guidance — explains how protein and serving sizes appear on labels.