Halibut is one of the leanest, highest-protein white fish you can put on your plate — a single cooked cup delivers roughly 178 calories and 37 grams of protein with almost no carbohydrates. But the exact numbers shift depending on how the fish is prepared and how you measure your portion. This halibut calories per cup calculator converts your serving into grams, applies the right nutrition profile for your cooking method, and shows you exactly what you're getting in calories, protein, fat, and carbs.
It's built for macro trackers, meal preppers, athletes, and anyone watching their calorie intake who wants a quick, reliable answer without digging through nutrition databases. Choose cups or grams, pick a preparation method, and the tool handles the math — including a per-cup breakdown so you can scale portions confidently.
Use the preset buttons for common serving sizes, then copy the summary straight into your favorite food tracking app.
Step-by-Step Guide
The calculator takes three quick inputs. First, enter how much halibut you plan to eat — the amount field accepts decimals, so 1.5, 0.75, or 2 are all fine. Next, choose the unit: cups (US measuring cups) or grams. If you have a kitchen scale, grams are always the more accurate option, because the way you flake and pack fish into a measuring cup varies from person to person. Finally, pick the preparation that matches your meal: raw, baked/grilled, or pan-seared with oil.
Press Calculate Calories and you get total calories, a protein/fat/carb breakdown, and a per-cup reference line. Use the preset buttons to instantly fill common portions like ½ cup, 1 cup, or 150 g. The Copy summary button puts the key numbers on your clipboard so you can paste them into a food diary or tracking app in seconds.
Nutrition Data Behind the Calculator
The values in this tool are based on USDA FoodData Central entries for Atlantic and Pacific halibut. One cup of cooked, flaked halibut weighs about 160 g — roughly a generous palm-sized fillet. Raw halibut is about 91 kcal per 100 g. Baking or grilling does not add calories, but it removes water, so the same weight of cooked fish packs more calories and protein per gram. Pan-searing adds a small amount of cooking oil, which raises the fat and calorie numbers; the estimate here assumes roughly one teaspoon of oil absorbed per 200 g of fish.
| Preparation | kcal per 100 g | kcal per cup (160 g) | Protein per cup | Fat per cup | Carbs |
|---|---|---|---|---|---|
| Raw | 91 | 146 | 29.8 g | 2.1 g | 0 g |
| Baked / grilled | 111 | 178 | 36.6 g | 2.6 g | 0 g |
| Pan-seared with oil | 134 | 214 | 33.4 g | 8.8 g | 0 g |
Full USDA nutrient profiles, including micronutrients like vitamin D, selenium, and B12, are available at FoodData Central.
Worked Examples
Example 1 — Two cups of baked halibut. Enter 2 cups with the baked option. That is 320 g. Calories: 111 kcal × 3.2 = 355 kcal. Protein: 22.9 g × 3.2 = 73.3 g. Fat: 1.6 g × 3.2 = 5.1 g. A two-cup portion easily covers a post-workout protein target without any starchy sides.
Example 2 — 150 g pan-seared fillet. A typical restaurant fillet weighs 150–180 g. At 134 kcal per 100 g, a 150 g portion comes to 134 × 1.5 = 201 kcal, with 31.4 g protein and 8.3 g fat — still remarkably lean for a fish cooked with oil.
Example 3 — Half a cup of raw halibut for poke. Raw halibut is a staple in poke bowls and sashimi. Half a cup is 80 g, so calories are 91 × 0.8 = 73 kcal, with 14.9 g protein. That makes a light, high-protein lunch base.
Tips for Accurate Tracking
Measuring by volume is convenient, but measuring by weight is far more reliable, especially for a protein-dense food where a loosely packed cup can differ by 20–30 g. If your tracking app allows it, log the raw weight before cooking, because protein and fat values are most consistent when measured raw.
- Flake fish gently and do not pack the measuring cup; fill it loosely.
- Use the grams unit whenever you have a scale — it removes the guesswork.
- Remember that sauces, butter, and marinades add calories this calculator does not include.
- If your fillet is breaded or battered, log it as a breaded fish product instead of plain halibut — the coating adds 50–100 kcal per serving.
Why Halibut Is a Diet Favorite
Halibut is one of the leanest sources of complete protein in the seafood aisle. A cup of cooked halibut provides 36.6 g of protein for roughly 178 kcal, giving it one of the best protein-per-calorie ratios of any whole food. It also delivers omega-3 fatty acids, vitamin B12, niacin, phosphorus, and selenium, with zero carbohydrates. For anyone with high protein targets — athletes, older adults, or people on a calorie deficit — halibut is hard to beat. If you are comparing lean white fish options, the tilapia nutrition calculator and the trout calories per 100g calculator are handy side-by-side references.
Frequently Asked Questions
Is halibut good for weight loss? Yes. It is high in protein, which increases satiety, and very low in calorie density. Swapping halibut for fattier meats a few times per week can meaningfully reduce daily calories while keeping you full. To set a daily protein target, try the protein for weight loss calculator.
How many calories are in a cup of cooked halibut? About 178 kcal for plain baked or grilled halibut. Pan-seared versions with oil come in near 214 kcal per cup, and raw portions around 146 kcal per cup.
Why does cooked fish have more calories per gram than raw fish? Cooking drives off water but not calories. A 100 g raw fillet becomes roughly 80–85 g cooked, so the same calories are packed into a smaller weight. That is why this tool asks about your preparation method.
Is halibut high in mercury? Halibut is a medium-sized predatory fish, so its mercury level is moderate. The FDA and EPA place halibut in their “Good Choices” category, and one serving per week is a reasonable guideline for most adults. See the official FDA advice about eating fish for details.