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Roast Beef Sub (Medium)

Roast Beef Sub (Medium) at Firehouse Subs has 740 calories, 41g protein, 54g carbs and 37g fat — sourced from Firehouse Subs Nutrition, not AI guesses. Medium white sub, USDA Choice roast beef, provolone, mayo, lettuce, tomato, onion, dill pickles.

Roast Beef Sub (Medium)
740calories
41gprotein
54gcarbs
37gfat
High protein Contains dairy, gluten, eggs
Unlock exact macros — free in the MacroBite app

At Firehouse Subs, the Roast Beef Sub (Medium) is a solid high-protein order. That works out to 5.5g of protein per 100 calories — 5g above the 36g Firehouse Subs average. Its macros land at roughly 22% of calories from protein, 29% from carbs and 45% from fat. Contains dairy, gluten, eggs.

Source: Firehouse Subs Nutrition ↗, last verified Jun 17, 2026. Menus change periodically; values may vary by location. How we verify →

See all 16 Firehouse Subs meals →  ·  Highest-protein Firehouse Subs meals →

More from Firehouse Subs

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Roast Beef Sub (Medium) — common questions

How much protein is in the Roast Beef Sub (Medium) at Firehouse Subs?
The Roast Beef Sub (Medium) has 41g of protein. It also has 740 calories, 54g carbs and 37g fat, per Firehouse Subs Nutrition.
How many calories are in the Roast Beef Sub (Medium)?
The Roast Beef Sub (Medium) at Firehouse Subs has 740 calories, according to Firehouse Subs Nutrition.
Is the Roast Beef Sub (Medium) high in protein?
Yes — at 41g of protein it clears the 30g high-protein bar.
Does the Roast Beef Sub (Medium) contain allergens?
Per Firehouse Subs Nutrition, the Roast Beef Sub (Medium) contains dairy, gluten, eggs. Preparation and cross-contact vary by location — check with the restaurant if you have an allergy.
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