Every 100 kcal of beef ribeye steak brings 8.1 g of protein. On that measure it ranks 104th of the 133 meats in this database and 297th of all 796 foods on the site. Measured by weight instead, its 23.7 g per 100 g ranks 93rd in its group.
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.
Weight for weight, beef ribeye steak has 1.1 g of protein for each gram of fat (23.7 g against 21.8 g per 100 g).
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 quoted here is measured by weight at 85 g, and it covers about 40% of the 50 g FDA Daily Value for protein.
Serving sizes
Protein in common portions of beef ribeye steak
Protein and calories in Beef ribeye steak for 100 g, the site serving and USDA household portions.
Portion
Weight
Protein
Calories
100 g
100 g
23.7 g
291 kcal
3 oz cooked (serving used here)
85 g
20.1 g
247 kcal
1 steak
291 g
69 g
847 kcal
Portion weights are the household measures listed on the USDA record; protein and calories scale from the per-100 g figures.
Amino acids
Essential amino acids in beef ribeye steak
The nine essential amino acids in Beef ribeye steak, per 100 g, per serving and per gram of protein.
Amino acid
Per 100 g
Per serving
mg per g protein
leucine
2.04 g
1.73 g
86
lysine
2.27 g
1.93 g
96
valine
1.18 g
1 g
50
isoleucine
1.1 g
0.94 g
46
threonine
1.12 g
0.95 g
47
phenylalanine
0.95 g
0.81 g
40
methionine
0.641 g
0.54 g
27
histidine
0.888 g
0.75 g
37
tryptophan
0.265 g
0.23 g
11
Per-100 g values are the amino acid analysis on the USDA record. The serving and per-gram-of-protein columns are arithmetic on those values; they are not a protein quality score.
SampleWhat goal trends look like after a week
109 g
Average per logged day
4 of 7
Days goal met
71%
Complete-protein share
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Sample figures for one made-up week against a 110 g goal, not your data. Red bars met the goal. Your own log fills this in with Premium.
How much protein is in 100 g of beef ribeye steak?
23.7 g. The 3 oz cooked serving used on this page weighs 85 g and so carries 20.1 g.
How much protein do you get per 100 calories of beef ribeye steak?
8.1 g. That figure divides its 23.7 g of protein per 100 g by its 291 kcal per 100 g, so it does not depend on serving size.
Is the protein in beef ribeye steak complete?
Yes. The protein in beef ribeye steak supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
What share of the protein Daily Value is one serving of beef ribeye steak?
About 40%. One 3 oz cooked serving has 20.1 g, and the FDA Daily Value for protein is 50 g.
Figures from USDA FoodData Central record #173392 (Beef, rib eye steak, boneless, lip-on, separable lean and fat, trimmed to 1/8" fat, all grades, cooked, grilled), SR Legacy data. USDA data is in the public domain. Values are the published reference figures for that record, not lab measurements for a specific brand or batch.