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Last updated: Aug 9, 2026

Firehouse Subs

Prime Rib Steak - Medium

Hot Specialty SubsPopular

Firehouse Subs Prime Rib Steak - Medium is fat-leaning, with about 47% of macro calories from fat. Each serving has 797 calories, 43.7g protein, 65.1g carbs, and 43.1g fat, making it better suited to carb-aware planning than low-carb goals.

1 Sub (296.1g)

Serving Size

296.1 g

Serving Weight

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797

Calories

Per serving

43.7 g

Protein

65.1 g

Carbs

43.1 g

Fat

Nutrition Facts

Amount per serving

Calories797 kcal

% Daily Value*

Total Fat 43.1 g55%

Saturated Fat 12.4 g62%

Trans Fat 0 g—

Cholesterol 116 mg39%

Sodium 2,508 mg109%

Total Carbohydrate 65.1 g24%

Dietary Fiber 6.5 g23%

Total Sugars 9.8 g—

Protein 43.7 g87%

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

797

kcal

Protein43.7 g (21%)

Carbs65.1 g (32%)

Fat43.1 g (47%)

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

Meal Planning Insights

Protein density5.5/10

21% of macro calories come from protein.

Satiety index10/10

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

Activity estimate199 min walk

About 80 minutes of running for these calories.

Key Nutrients

Protein 43.7 g87%

Fiber 6.5 g23%

Sodium 2,508 mg109%

Sugars 9.8 g—

Saturated Fat 12.4 g62%

How we calculate these values

Diet Compatibility

High protein5.5/10 protein density from 43.7g protein and 797 calories.Yes

Lower carb65.1g carbs per serving.No

Low fat43.1g total fat per serving.No

High sugar9.8g total sugars per serving.No

High sodium2,508mg sodium per serving.Yes

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

Ingredients

Medium Wheat Sub Roll: ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MALTED BARLEY FLOUR, WATER, WHOLE WHEAT FLOUR, SUGAR, YEAST, WHEAT GLUTEN, SOYBEAN OIL, WHEAT BRAN, SALT, DRY HONEY (HONEY, SUGAR),…

Allergens

Contains

WheatMilkEggSoy

Compare with other items

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

Quick comparisons

Prime Rib Steak - Medium has 647 more calories than 1% Chocolate Milk and 36.7g more protein. Compare

Prime Rib Steak - Medium has 707 more calories than 1% Milk and 36.7g 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

Prime Rib Steak - Medium Compared With Nearby Items

Firehouse Subs Prime Rib Steak - Medium is listed in the Hot Specialty Subs category with 797 calories, 43.7g protein, 65.1g carbs, and 43.1g fat per serving.

Data Source and Methodology

Nutrition values for Prime Rib Steak - Medium 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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