Counting calories in a steak isn’t as simple as checking one number — the cut, marbling, and whether you weigh it raw or cooked all change the final total. This steak calories per ounce calculator handles the details for you: pick a cut, enter your portion, and see total calories, protein, fat, and calories per ounce instantly. It is ideal for macro trackers, keto and low-carb eaters, meal preppers, and anyone who wants consistent portions at dinner.
You can switch between ounces and grams, convert a raw weight to its cooked equivalent with a yield percentage, and add optional butter, oil, or sauce calories. The calculator also includes quick preset buttons for common serving sizes and shows a step-by-step breakdown so you can see exactly how the total was reached and adjust it to fit your own logging style. This makes it simple to stay on top of your daily targets, whether you are logging a weekday dinner or planning a cookout.
🥩 Steak Cut
⚖️ Portion Size
🧈 Optional Additions
How the Calculation Works
Steak calories are not a single number because different cuts contain different amounts of fat, protein, and water. Fatty cuts like ribeye and strip deliver more calories per ounce, while lean cuts like sirloin and filet are lighter but higher in protein per calorie. This calculator stores a reference value for each cut based on typical USDA-style nutrient data for cooked beef, then multiplies by the portion weight you enter.
If you enter your portion in grams, it first converts grams to ounces using the standard factor 1 oz = 28.3495 g. If you select the raw weight option, it applies a yield percentage to convert the raw weight to cooked weight before multiplying. That two-step process matters because cooking removes moisture and renders out fat, making cooked meat more calorie-dense by weight. Protein and fat are estimated with the same per-ounce method, so you get a full macro breakdown instead of a single number.
Reference Nutrition Values (per cooked ounce)
Values below are approximate averages for broiled or roasted lean beef without added fat. Marbling, grade, aging, and trimming can change the actual numbers by 10-20%.
| Cut | Calories | Protein (g) | Fat (g) |
|---|---|---|---|
| Ribeye | 71 | 6.5 | 5.0 |
| New York Strip | 65 | 7.2 | 4.0 |
| Sirloin | 58 | 8.0 | 2.7 |
| Filet Mignon | 58 | 7.5 | 3.0 |
| Flank | 55 | 8.1 | 2.3 |
| Skirt | 62 | 7.5 | 3.4 |
| T-Bone / Porterhouse | 62 | 7.5 | 3.5 |
| Chuck | 66 | 7.4 | 3.9 |
| Ground Beef 80/20 | 71 | 5.8 | 5.2 |
| Ground Beef 93/7 | 56 | 7.0 | 3.0 |
Nutrition data are estimates. For precise values, check the USDA FoodData Central database for the exact product and cooking method you use.
Worked Examples
Why Raw vs Cooked Weight Matters
A raw steak contains a large amount of water. As it cooks, moisture evaporates and some fat renders out, so cooked meat weighs less than raw but becomes more concentrated in calories and protein per ounce. A 6 oz raw ribeye that shrinks to 4.5 oz cooked is not the same serving as a 6 oz cooked ribeye, which would have been about 7.5 to 8 oz raw.
Yield percentages depend on doneness. Rare steak typically retains 85-90% of its raw weight, medium around 75-80%, and well-done around 65-70%. The calculator uses 75% as a sensible default for medium doneness, but you can adjust it if you usually cook your steak longer or shorter.
Tips for Accurate Tracking
Frequently Asked Questions
Are these calories for raw or cooked steak? The base values represent cooked steak per ounce. If you enter a raw weight, use the raw weight checkbox and yield percentage to convert it to cooked weight first.
Why do cuts vary so much? Fat content drives the difference. A well-marbled ribeye contains more fat and calories per ounce, while lean sirloin and filet provide more protein per calorie. Trimming visible fat lowers calories further.
How accurate is this calculator? It gives good estimates for typical beef, but actual numbers depend on grade, feed, aging, cooking method, and trimming. Use USDA FoodData Central for specific packaged products.
How many calories are in a typical 8 oz steak? For a cooked 8 oz portion, most cuts fall between about 440 and 570 calories before butter or sauce. A raw 8 oz portion will land lower after the yield conversion.