Every chain menu in America is required to show you calories. Not one is required to print protein on the menu. So here it is — 13 Firehouse Subs items, using the figures Firehouse Subs publishes.
Source: nutrition data from Firehouse Subs, published via Nutritionix — the operator's designated nutrition portal, rather than a document Firehouse Subs hosts itself — read 22 October 2026.
This operator publishes protein but not serving weights, so protein per 100 g — the figure that tells you how dense a plate is — cannot be worked out from their numbers. These are ranked by total protein, and nothing here is estimated to fill the gap.
| Item | Protein |
|---|---|
| Hero (Medium)medium hero sub (the menu calls it the Firehouse Hero), standard build | 49 g |
| Chicken (Medium)medium single-meat chicken sub | 47 g |
| Cajun Chicken (Medium)medium cajun chicken sub, standard build | 45 g |
| Firehouse Captain's Club (Medium)medium captain's club sub, standard build | 43 g |
| Prime Rib Steak (Medium)medium prime rib steak sub, standard build | 43 g |
| New York Steamer (Medium)medium new york steamer sub, standard build | 41 g |
| Firehouse Salad with Chickenfirehouse salad with chicken, standard build | 41 g |
| Engineer (Medium)medium engineer sub, standard build | 39 g |
| Italian Chopped Salad with Grilled Chickenitalian chopped salad with grilled chicken, standard build | 39 g |
| Hook & Ladder (Medium)medium hook & ladder sub, standard build | 37 g |
| Turkey (Medium)medium single-meat turkey sub | 36 g |
| Hook & Ladder Saladhook & ladder salad, standard build | 30 g |
| Cajun Chicken (Small)small cajun chicken sub | 23 g |
These are the restaurant's figures. Your daily protein target is worked out from your own measurements — six questions, about two minutes. Free, no card, no account.
Find my protein numberOr log your meals in the Kessa app.