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Last updated: Aug 9, 2026

Firehouse Subs

Hero - Small

Hot Specialty SubsPopular

Firehouse Subs Hero - Small is fat-leaning, with about 43% of macro calories from fat. Each serving has 394 calories, 24.1g protein, 32g carbs, and 18.6g fat, making it a moderate option for comparing calories and macros.

1 Sub (2.5g)

Serving Size

2.5 g

Serving Weight

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394

Calories

Per serving

24.1 g

Protein

32 g

Carbs

18.6 g

Fat

Nutrition Facts

Amount per serving

Calories394 kcal

% Daily Value*

Total Fat 18.6 g24%

Saturated Fat 4.1 g20%

Trans Fat 0 g—

Cholesterol 48 mg16%

Sodium 1,000 mg43%

Total Carbohydrate 32 g12%

Dietary Fiber 2 g7%

Total Sugars 7 g—

Protein 24.1 g48%

Vitamin A—

Vitamin C—

Vitamin D—

Calcium—

Iron—

Potassium—

Caffeine—

* The % Daily Value tells you how much a nutrient in a serving contributes to a daily diet.

Nutrition Breakdown

394

kcal

Protein24.1 g (25%)

Carbs32 g (33%)

Fat18.6 g (43%)

Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Meal Planning Insights

Protein density6.1/10

25% of macro calories come from protein.

Satiety index10/10

Estimated from protein, fiber, calories, and fat balance.

Activity estimate98 min walk

About 39 minutes of running for these calories.

Key Nutrients

Protein 24.1 g48%

Fiber 2 g7%

Sodium 1,000 mg43%

Sugars 7 g—

Saturated Fat 4.1 g20%

How we calculate these values

Diet Compatibility

High protein6.1/10 protein density from 24.1g protein and 394 calories.Yes

Lower carb32g carbs per serving.No

Low fat18.6g total fat per serving.No

High sugar7g total sugars per serving.No

High sodium1,000mg sodium per serving.Yes

Vegetarian source flagNo vegetarian flag is published for this item.Not flagged

Ingredients

Medium White Sub Roll: ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MALTED BARLEY FLOUR, WATER, SUGAR, YEAST, SOYBEAN OIL, SALT, WHEAT GLUTEN, DOUGH CONDITIONER (ASCORBIC ACID, ENZYMES), CALCIUM…

Allergens

Contains

WheatMilkEggSoy

Compare with other items

Select up to 3 items to compare calories, protein, sodium, and macros.

Quick comparisons

Hero - Small has 244 more calories than 1% Chocolate Milk and 17.1g more protein. Compare

Hero - Small has 304 more calories than 1% Milk and 17.1g more protein. Compare

1% Chocolate Milk150 kcal · 7 g protein1% Milk90 kcal · 7 g protein5-Cheese Mac & Cheese380 kcal · 17 g proteinApple Juice100 kcal · 0 g proteinAu Jus Bell Peppers5 kcal · 0.2 g proteinAu Jus Bell Peppers3 kcal · 0.1 g protein

Compare with 1% Chocolate Milk

Hero - Small Compared With Nearby Items

Firehouse Subs Hero - Small is listed in the Hot Specialty Subs category with 394 calories, 24.1g protein, 32g carbs, and 18.6g fat per serving.

Data Source and Methodology

Nutrition values for Hero - Small are maintained in Nutrimetry from restaurant-published menu data and were last checked on Aug 9, 2026. Macro percentages use 4 calories per gram for protein and carbohydrates and 9 calories per gram for fat.

Read the data methodology

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