Top sirloin is the lean steak choice — around 206 calories per 100g with 28g of protein and a moderate 9.4g of fat. It's a popular cut for fitness eating because it delivers strong protein density without the calorie weight of ribeye or strip.
Calories scale with portion. Here's how a typical sirloin steak serving translates in your tracker:
Protein-dense — 13.6 g of protein per 100 kcal makes sirloin steak an efficient choice for hitting a protein target while managing calories.
How sirloin steak stacks up on calories and protein against foods people commonly compare it to:
Point your iPhone camera at sirloin steak and Spotwell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.
Download on theApp StoreSirloin Steak has approximately 206 calories per 100g. A typical serving — 8 oz steak (227g) — comes in at 467 calories.
28g of protein per 100g. That puts sirloin steak at roughly 13.6g of protein per 100 calories — a useful lens when comparing to other protein sources.
The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With Spotwell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.
It depends on your overall calorie target. Sirloin Steak sits in a moderate calorie range. It can fit any goal — weight loss, maintenance, or muscle gain — when portioned to your daily target.