A typical 3-ounce serving of cooked steak contains between 170 and 300 calories, depending on the cut and how much fat it carries. But most steaks you’d order at a restaurant or grill at home weigh 8 to 12 ounces, which means a full steak dinner can range from roughly 450 to over 900 calories before you add any cooking fat or sides.
The cut you choose matters more than almost any other variable. A lean sirloin and a well-marbled ribeye can differ by 75 or more calories per 100 grams, and those differences scale up fast with portion size.
Calories by Cut
All of the numbers below are per 100 grams (about 3.5 ounces) of cooked, broiled steak with a thin layer of exterior fat left on, based on USDA data for Choice-grade beef:
- Ribeye: 304 calories. The most calorie-dense common cut thanks to heavy marbling throughout the meat.
- Filet mignon (tenderloin): 273 calories. Tender and relatively rich despite its reputation as a “lean” cut.
- Top sirloin: 257 calories. A solid middle ground between flavor and leanness.
- Eye of round: roughly 170 calories per 3-ounce serving. One of the leanest steaks you can buy.
If you trim away the visible fat and eat only the lean portion, the calorie count drops noticeably. A Choice ribeye goes from 304 to 202 calories per 100 grams when you eat only the lean meat. That’s a 34% reduction from a single step you can do at the table with a knife.
How Portion Size Changes the Math
USDA nutrition labels use a standard 3-ounce (84-gram) cooked serving, which is roughly the size of a deck of cards. In that serving, a broiled sirloin steak has about 200 calories and 26 grams of protein. A top round steak comes in at 180 calories with 23 grams of protein.
Most people eat considerably more than 3 ounces. Here’s what the numbers look like for a Choice sirloin at more realistic portions:
- 6-ounce cooked steak (170g): approximately 437 calories
- 8-ounce cooked steak (227g): approximately 583 calories
- 12-ounce cooked steak (340g): approximately 874 calories
Swap that sirloin for a ribeye at the same portion sizes and you’re looking at roughly 517, 690, and 1,034 calories respectively. The cut and the portion size together determine whether your steak is a moderate meal or a calorie-heavy one.
Raw Weight vs. Cooked Weight
Steak loses weight during cooking as moisture evaporates. A steak cooked as a thick cut (like you’d grill or pan-sear) typically retains about 83 to 85% of its raw weight, according to USDA cooking yield data. That means a 10-ounce raw steak becomes roughly an 8.3 to 8.5-ounce cooked steak.
This matters because nutrition labels on packaged raw steak list calories for the uncooked weight, while most calorie databases report cooked values. If your package says a raw 4-ounce serving has 200 calories, those calories don’t disappear during cooking. They just get concentrated into a smaller piece of meat. When you’re tracking calories, weigh the steak in whatever state matches your calorie source, raw or cooked, and be consistent.
How USDA Grades Affect Calories
Beef sold in the U.S. is graded by the amount of marbling (intramuscular fat) in the meat. Prime has the most marbling, Choice is in the middle, and Select is the leanest. Most grocery stores carry Choice and Select. Prime is more common at steakhouses and specialty butchers.
The calorie difference between grades is real. A Select ribeye has 278 calories per 100 grams compared to 304 for Choice, a gap of 26 calories that comes almost entirely from fat. For sirloin, the spread is 230 versus 257 calories. Prime-grade steaks would sit above Choice, likely adding another 20 to 30 calories per 100 grams depending on the cut. If you’re choosing between grades at the store and calories are a concern, Select gives you noticeably leaner meat with a milder flavor tradeoff on cuts like sirloin or round.
Grass-Fed vs. Grain-Fed
Grass-fed cattle take longer to reach market weight and produce leaner meat with less marbling. This generally means somewhat fewer calories per serving compared to grain-fed beef of the same cut, though the two are nutritionally similar overall. The most notable difference is in fat composition: grass-fed beef contains roughly twice the omega-3 fatty acids of grain-fed, though the absolute amount is still small, about 30 milligrams more per serving. If you’re choosing grass-fed for calorie reasons alone, the difference is modest. The leaner texture and slightly different flavor are more noticeable than the calorie gap.
Cooking Fat Adds Up Quickly
A steak grilled without added fat contains only the calories from the meat itself. But pan-searing with butter or oil changes that. Both butter and oil contain about 100 to 120 calories per tablespoon, and it’s common to use one to two tablespoons when searing a steak. Butter runs slightly lower (about 100 calories per tablespoon) because roughly 20% of its weight is water and milk solids rather than pure fat.
Not all of that fat ends up on the steak. Some stays in the pan. But if you’re basting with butter as the steak cooks, a reasonable estimate is that 50 to 100 calories of cooking fat make it onto your plate. Grilling, broiling, or using a cast-iron pan with minimal oil are the lowest-calorie cooking methods.
Protein and Nutrients Per Serving
Steak is one of the most protein-dense foods available. A 3-ounce cooked serving delivers 23 to 26 grams of protein, meaning a typical 8-ounce steak provides roughly 50 to 70 grams. That’s close to an entire day’s protein needs for a sedentary adult.
Beef is also a concentrated source of several nutrients that are harder to get from plant foods. It’s particularly rich in B12 (critical for nerve function and energy metabolism), iron in its most absorbable form, and zinc. A single serving of steak can supply a significant portion of your daily needs for all three. The protein and nutrient density is consistent across cuts, so choosing a leaner steak like sirloin or round doesn’t mean sacrificing much beyond fat and calories.