Estimating how much protein survives frying is trickier than it looks. Water is lost, oil is absorbed, and coatings add weight without adding much protein. This calculator converts your raw portion into a realistic protein-per-100g figure for the fried food you actually eat — chicken, fish, shrimp, tofu, or a custom ingredient.
Choose your protein, coating, and frying method, enter the raw weight, and let the tool estimate the cooked weight with typical yields. If you have a kitchen scale, check the "final fried weight" box for a more precise result. The breakdown shows retained protein, cooked weight, and an easy per-serving value.
Great for meal prep, macro tracking, and recipe nutrition — just keep in mind that actual results vary with oil temperature, cooking time, and portion size.
🥩 Fried Protein Per 100g Calculator
Estimate the protein content of your favorite fried foods — no more guessing between raw and cooked numbers.
How It Works
This calculator follows the same logic a food-labeling lab would use, simplified for the home kitchen. The protein in your raw portion is calculated from the raw protein-per-100g value you enter. Not all of that protein survives the frying process as intact protein — some is lost in cooking juices and drippings, so a retention factor of 90–92% is applied depending on method. The cooked weight is then estimated from typical yield factors, which account for moisture loss and oil absorption. For example, a skinless chicken breast with no coating loses roughly 20–25% of its raw weight when pan-fried. A battered fish fillet, by contrast, can gain weight because batter and oil stick to the surface. If you enter the final fried weight yourself, the calculator uses that instead of the estimate, which removes most of the guesswork.
Worked Examples
Example 1 — Pan-fried chicken breast, no coating. Start with 150 g raw chicken breast at 22 g protein/100 g. Total raw protein = 33 g. Pan-frying retention = 90%, so retained protein = 29.7 g. Estimated cooked weight = 150 × 0.78 = 117 g. Protein per 100 g = 29.7 ÷ 117 × 100 = 25.4 g. The whole 117 g portion provides 29.7 g protein.
Example 2 — Deep-fried battered cod. Start with 120 g raw cod at 18 g protein/100 g. Total raw protein = 21.6 g. Deep-frying retention = 92%, so retained protein = 19.9 g. With batter, the yield factor is about 1.05, so cooked weight ≈ 126 g. Protein per 100 g = 19.9 ÷ 126 × 100 = 15.8 g. The batter and absorbed oil spread the same protein over more grams, which is why battered fish looks lower in protein per 100 g.
Reference Values
The table below shows approximate raw protein values and typical fried results calculated with the tool's defaults. Treat these as starting points, not lab results.
| Food | Raw protein (g/100g) | Pan-fried, no coating (g/100g) | Deep-fried, breaded/battered (g/100g) |
|---|---|---|---|
| Chicken breast | 22 | 27 | 22 |
| Cod / haddock | 18 | 22 | 16 |
| Salmon fillet | 20 | 26 | 19 |
| Shrimp | 20 | 27 | 17 |
| Lean pork chop | 21 | 25 | 20 |
| Firm tofu | 12 | 15 | 12 |
These numbers assume typical moisture losses, oil uptake, and coating weights. Your actual values depend on how long you fry, oil temperature, and how much coating you use.
Factors That Change the Result
Three variables matter most. First, surface area and thickness: thin fillets lose water faster and pick up more oil relative to their weight. Second, coating: flour, breadcrumbs, and batter all add carbohydrates and retained oil, which lowers protein per 100 g even though the meat's protein content stays similar. Third, oil temperature: hotter oil seals the surface more quickly and absorbs less oil, while lower-temperature frying leads to greasier food. If you have a scale, weighing the cooked food after a one-minute rest on paper towel is the single best way to improve accuracy. This is especially useful for fried calorie tracking.
Frequently Asked Questions
Does frying destroy protein? High heat can affect some amino acids, especially lysine, but the total protein content stays largely intact. Our 90–92% retention factor is a practical estimate for home frying, not a measure of amino acid damage.
Why does the calculator show less protein per 100g for battered food? Batter and breading add weight from flour, starch, and oil, but they add relatively little protein. The same chicken protein is now diluted across a heavier portion, so grams of protein per 100 g drops.
Should I track protein raw or cooked? Choose one method and be consistent. Nutrition labels often list raw values, but if you meal-prep fried foods, the cooked value per 100 g is more representative of what you actually plate. This calculator handles both directions: raw weight plus estimated yield, or raw weight plus measured cooked weight.
Can I use this for air-fried food? Yes. Select air-fried to use lower oil uptake estimates. Because air fryers remove less moisture than deep frying, the per-100g protein value often lands between raw and pan-fried.
Tips for Tracking Fried Protein
- Weigh the food raw on a kitchen scale before cooking, and write down the number.
- If you use a cooked weight, weigh it after resting for 1–2 minutes so surface oil doesn't inflate the result.
- Log the coating separately if you're tracking carbs or calories; it adds mostly carbohydrate and a small amount of protein.
- For consistent macro tracking, use the same food entries week to week.
If you're also counting calories, pair this with chicken calorie-per-ounce calculator to get the full picture of your fried meal.