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Nutrition Breakdown

Firehouse Subs Calories — Lowest to Highest

Browse calorie values for Firehouse Subs menu items, with official nutrition where available and estimated calories for uncovered items. Updated August 2026.

Coverage

100%

Average Calories

249 kcal

Lowest Item

10 kcal

Highest Item

571 kcal

88 / 88 items resolved USDA database: 73 Estimated: 15

Lowest Calorie Items at Firehouse Subs

Use this ranking to find lighter menu options quickly

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# Item Category Source Calories
1 Bottled Water drinks Estimated 10 kcal
2 New York Steamer® , Large (11-12 inch) hot specialty subs Estimated 10 kcal
3 New York Steamer® , Medium (7-8 inch) hot specialty subs Estimated 10 kcal
4 Side Salad sides USDA 20 kcal
5 Jamaican Jerk Turkey, Large (11-12 inch) Turk hot specialty subs USDA 67 kcal
6 Jamaican Jerk Turkey, Med hot specialty subs USDA 67 kcal
7 Jamaican Jerk Turkey, Small (3-4 inch) Turk hot specialty subs USDA 67 kcal
8 Bottled Soda drinks USDA 71 kcal
9 Grilled Chicken Salad salads USDA 81 kcal
10 Italian Grilled Chicken Salad salads USDA 81 kcal
11 Fire Hydrant Hot Sauce Bottle sides USDA 92 kcal
12 Smoked Turkey Breast , Large (11-12 inch) build your own USDA 95 kcal
13 Smoked Turkey Breast , Medium (7-8 inch) build your own USDA 95 kcal
14 Smoked Turkey Breast , Small (3-4 inch) build your own USDA 95 kcal
15 Firehouse Steak & Cheese®, Large (11-12 inch) hot specialty subs USDA 103 kcal
16 Kids Turkey Breast kids' combos USDA 106 kcal
17 Soups, Bowl of Loaded Potato sides USDA 106 kcal
18 Soups, Cup of Loaded Potato sides USDA 106 kcal
19 New York Steamer® , Small (3-4 inch) hot specialty subs USDA 110 kcal
20 Honey Ham , Small (3-4 inch) build your own USDA 122 kcal
21 Kids Honey Ham kids' combos USDA 122 kcal
22 Veggie, Large (11-12 inch) build your own USDA 140 kcal
23 Club on a Sub™, Large (11-12 inch) hot specialty subs USDA 146 kcal
24 Club on a Sub™, Medium (7-8 inch) hot specialty subs USDA 146 kcal
25 Club on a Sub™, Small (3-4 inch) hot specialty subs USDA 146 kcal
26 Pastrami, Large (11-12 inch) build your own USDA 147 kcal
27 Pastrami, Small (3-4 inch) build your own USDA 147 kcal
28 Engineer® , Large (11-12 inch) hot specialty subs USDA 164 kcal
29 Firehouse Hero®, Large (11-12 inch) hot specialty subs USDA 164 kcal
30 Honey Ham , Large (11-12 inch) build your own USDA 164 kcal
Nutrition sync is temporarily paused Missing official items: 15

Highest Calorie Items

Top calorie-dense picks based on current nutrition data

Spicy Cajun Chicken, Medium (7-8 inch)

hot specialty subs 571 kcal

Firehouse Hero®, Small (3-4 inch)

hot specialty subs 533 kcal

Cookie, Celebration Sugar

sides 523 kcal

Chips

sides 494 kcal

Cookie, Chocolate Chip

sides 492 kcal

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How Estimated Calories Are Calculated

When official nutrition is unavailable, calorie values are estimated using menu-item keywords and then adjusted by portion size. These values are directional for comparison, not medical nutrition advice.

  • Base estimate: item-name tokens (for example burger, fries, salad, pizza, shake) map to baseline calorie ranges.
  • Portion weighting: ounce and gram values adjust the estimate (about 8 oz = 1.0x, about 230 g = 1.0x), then the value is capped within a safe range.
  • Size modifiers: small/kids items apply a lower multiplier, while large/xl/family/double items apply a higher multiplier.
  • Final output: estimates are rounded to whole calories and shown as Estimated in the source column.

Firehouse Subs Calories — Frequently Asked Questions

Questions about calorie values, estimates, and nutrition coverage.

How many Firehouse Subs items have calorie data?
Firehouse Subs currently has calorie values for 88 of 88 menu items (100% coverage). We first use official nutrition sources when available, then apply estimation fallback for unresolved items.

What is the lowest-calorie item at Firehouse Subs?
The lightest item currently tracked is Bottled Water at approximately 10 kcal. Use the ranked table to find other low-calorie meal choices.

Are Firehouse Subs calorie values official or estimated?
This page uses a hybrid model: 73 items use USDA database estimates, while 15 items are algorithmic estimates. Both are directional for comparison, not medical guidance.

Where can I compare calories and prices together?
Use the Firehouse Subs full menu prices page for price-focused browsing and the cheapest menu items page for budget picks. This calories page is built for nutrition-first filtering.

How to Use This Calories Page

Use this page to compare low-calorie and high-calorie items quickly before ordering. Official values are used where available, and estimated values fill the coverage gap for broad menu discovery.

Estimated values are directional and may vary by location, preparation style, and serving size. For strict dietary planning, cross-check with the official restaurant nutrition statement when available.