A typical 3 oz cooked serving of beef ribeye steak contains 20.1 grams of protein (23.7 g per 100 g), which makes it a very good source of protein. That covers roughly 40% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
Protein accounts for roughly 33% of the calories in beef ribeye steak, making it moderately protein-dense. The rest comes from fat and carbohydrate, so it adds a solid amount of protein while still carrying real energy - useful when you are eating to a calorie target rather than under one.
Among the 133 meats in the database, beef ribeye steak ranks 89th by protein per serving, and 152nd out of all 796 foods on the site. Set against baby back ribs, another meat entry in the database, a serving carries about 0.5 g more protein (baby back ribs has 19.6 g per 3 oz cooked).
It is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own. The serving above is measured by weight at 85 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #173392 - "Beef, rib eye steak, boneless, lip-on, separable lean and fat, trimmed to 1/8" fat, all grades, cooked, grilled" (SR Legacy, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Beef ribeye steak protein FAQ
How much protein is in beef ribeye steak per 100 g?
Beef ribeye steak has 23.7 g of protein per 100 g. A typical 3 oz cooked serving (85 g) provides 20.1 g.
Is beef ribeye steak a complete protein?
Yes. Beef ribeye steak is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
How much of the Daily Value does a serving of beef ribeye steak cover?
A 3 oz cooked serving of beef ribeye steak contains 20.1 g of protein, about 40% of the 50 g reference Daily Value.
Is beef ribeye steak a good source of protein?
Beef ribeye steak is a very good source of protein, and about 33% of its calories come from protein, which makes it moderately protein-dense. Set against baby back ribs, another meat entry in the database, a serving carries about 0.5 g more protein (baby back ribs has 19.6 g per 3 oz cooked).