Ordering the hero sub - small at Firehouse Subs? At 400 calories per serving, it's 18% of an average 2,200 kcal day. Protein-per-calorie: 24%.
healmeal logs this item in two taps. Search by name, or scan the Firehouse Subs menu live with your camera. The portion is editable if you ordered a half-size or shared.
Nutrition values are published by Firehouse Subs for a standard preparation. Modifications (extra sauce, no cheese, etc.) will change the totals. healmeal handles modifiers in-app.
FAQ
How many calories are in Firehouse Subs' hero sub - small?
Firehouse Subs' hero sub - small has 400 calories per serving.
How much protein is in a hero sub - small at Firehouse Subs?
A hero sub - small at Firehouse Subs has 24g of protein per serving.
Is the hero sub - small a good macro-friendly choice at Firehouse Subs?
Yes. About 24% of the calories come from protein, which is a solid ratio for a sit-down or quick-service meal.
Can I log Firehouse Subs hero sub - small in healmeal?
Yes. The menu scanner reads Firehouse Subs's menu with your camera, or you can search by name. Modifiers like extra protein or no sauce update the totals.
Last updated 20 May 2026
