Outside Round vs Sirloin Cap — What's the Difference?
Quick Answer
Outside Round (bottom round (outside round)) and Sirloin Cap (sirloin cap) are not the same cut: Outside Round is round primal (Outer thigh of the hindquarter); Sirloin Cap is sirloin primal (top sirloin cap (coulotte)).
Canonical entities: Outside Round · Sirloin Cap
Side-by-side
| outside round | sirloin cap | |
|---|---|---|
| Primal | round | sirloin |
| Muscle / location | Outer thigh of the hindquarter | top sirloin cap (coulotte) |
| Character | From the outer thigh (biceps femoris). Leaner and less tender than inside round. Used for roasts, rouladen, and ground beef. Often sold as bottom round roast or eye of round. | Triangular cap on the top sirloin; prized as picanha in Brazil. |
Key differences
- Different primals: round vs sirloin.
- Texture and slicing: compare fibrous, grain-heavy cuts vs more tender steak-style muscles based on each cut’s description.
- Retail naming diverges by country—always map through a canonical cut when translating menus or labels.
When to use each
Outside Round
Pick Outside Round when you want its specific marbling/texture profile: From the outer thigh (biceps femoris). Leaner and less tender than inside round. Used for roasts, rouladen, and ground beef. Often sold as bottom round roast or eye of round.
Sirloin Cap
Pick Sirloin Cap when its primal/muscle traits fit the dish: Triangular cap on the top sirloin; prized as picanha in Brazil.
Outside Round and Sirloin Cap are different canonical muscles/primals: Outside Round is round (Outer thigh of the hindquarter); Sirloin Cap is sirloin (top sirloin cap (coulotte)).
Choose based on tenderness, marbling, grain direction, and how you plan to cook (sear vs braise vs slice thin).
Read the full guides: outside round (what-is) · sirloin cap (what-is) · outside round hub · sirloin cap hub