A 3-ounce serving of cooked beef contains between 170 and 300 calories, depending on the cut. That range is wide because beef varies dramatically in fat content from one part of the animal to another. A lean chuck blade roast sits at the low end, while a fatty rib roast nearly doubles it.
Calories by Cut
The USDA lists these calorie counts for a standard 3-ounce (84-gram) cooked serving:
- Chuck blade roast (braised): 170 calories
- Sirloin steak (broiled): 200 calories
- Top loin steak (broiled): 220 calories
- Tenderloin steak (broiled): 220 calories
- Rib steak, small end (broiled): 240 calories
- Chuck arm pot roast (braised): 250 calories
- Rib roast, large end (roasted): 300 calories
The pattern is straightforward: cuts from the rib section carry more marbling (intramuscular fat), which pushes their calorie count higher. Loin cuts like sirloin and tenderloin land in the middle. Some chuck cuts are surprisingly lean because their connective tissue breaks down during slow cooking while the fat renders out.
What About Ground Beef?
Ground beef is labeled by its lean-to-fat ratio, and that ratio controls the calorie count more than anything else. A 3-ounce cooked portion of 90/10 ground beef (90% lean) comes in around 180 to 200 calories. Switch to 80/20, and you’re closer to 230 calories for the same serving. The fattiest widely available option, 73/27, can push past 250 calories.
If you see “lean” on a package of ground beef, it means the product contains less than 10 grams of total fat, no more than 4.5 grams of saturated fat, and under 95 milligrams of cholesterol per serving. “Extra lean” is a stricter standard: less than 5 grams of total fat and under 2 grams of saturated fat. These labels are regulated by the USDA, so they’re consistent across brands.
Why Fat Content Matters More Than the Cut Name
Protein in beef stays remarkably consistent across cuts, hovering around 22 to 26 grams per 3-ounce serving. Fat is the variable that swings the calorie count. A gram of protein has 4 calories, while a gram of fat has 9. So when a rib roast packs in extra marbling compared to a sirloin steak, those additional grams of fat add up fast.
This is why two cuts with similar protein content can differ by over 100 calories per serving. If you’re tracking calories, the simplest rule is to look at the fat content rather than memorizing numbers for every cut. Visible white marbling through the meat is a quick visual indicator of higher calorie density.
Serving Size: What 3 Ounces Actually Looks Like
All the numbers above are based on a 3-ounce cooked serving, which is the USDA standard. That’s roughly the size of a deck of cards or the palm of your hand. Most people eat more than this in a sitting. A typical restaurant steak runs 8 to 12 ounces, meaning the actual calorie count of your meal could be three to four times the per-serving figure.
A 10-ounce ribeye, for example, would contain roughly 800 calories from the meat alone. Knowing the 3-ounce baseline lets you scale up based on what’s actually on your plate.
Raw vs. Cooked Weight Changes the Math
Beef loses moisture during cooking, which means a piece that weighs 8 ounces raw might weigh only 6 ounces after it comes off the grill. The calories don’t leave with the water. The protein and most of the fat stay in the meat, so the cooked piece is more calorie-dense per ounce than the raw version was.
Consider a half-pound (225-gram) raw tenderloin steak with 320 calories. After cooking, it might lose about 50 grams of water and weigh only 175 grams. If you weighed the cooked steak and looked up raw nutrition values at that weight, you’d undercount by about 70 calories and miss roughly 11 grams of protein. The simplest approach: either weigh your beef raw and use raw nutrition data, or weigh it cooked and use cooked nutrition data. Mixing the two creates errors.
Nutrients Beyond Calories
Beef is one of the most nutrient-dense protein sources available. A single 3-ounce serving provides more than 10% of your daily value for protein, zinc, vitamin B12, iron, niacin, vitamin B6, and phosphorus. The iron in beef is in a form (heme iron) that your body absorbs two to three times more efficiently than the iron found in plant foods. Vitamin B12, which is essential for nerve function and red blood cell production, is found almost exclusively in animal products, and beef is one of the richest sources.
This nutrient density is worth factoring in if you’re comparing beef to other protein sources purely on a calorie basis. A 3-ounce serving of sirloin at 200 calories delivers a broad package of micronutrients that you’d need to piece together from multiple plant-based foods.
Quick Comparison to Other Proteins
- Skinless chicken breast (3 oz, cooked): about 140 calories
- Pork tenderloin (3 oz, cooked): about 120 calories
- Salmon (3 oz, cooked): about 175 calories
- Lean sirloin steak (3 oz, cooked): 200 calories
- Rib roast (3 oz, cooked): 300 calories
Lean beef cuts overlap significantly with salmon and sit only 40 to 60 calories above chicken breast per serving. The gap widens with fattier cuts like rib roast, but choosing sirloin or a lean chuck roast keeps beef competitive with other common proteins.