Last updated: Aug 9, 2026
Illustration for reference only
Jack in the Box

Classic Smashed Jack

Burgers & MorePopular

Classic Smashed Jack nutrition information from Jack in the Box.

1 Serving
Serving Size
Not provided
Serving Weight
720
Calories
Per serving
26 g
Protein
46 g
Carbs
48 g
Fat

Nutrition Facts

Amount per serving

Calories720 kcal
% Daily Value*
Total Fat 48 g62%
Saturated Fat 18 g90%
Trans Fat 2.5 g
Cholesterol 90 mg30%
Sodium 1,380 mg60%
Total Carbohydrate 46 g17%
Dietary Fiber 2 g7%
Total Sugars 7 g
Protein 26 g52%
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

720
kcal
Protein26 g (14%)
Carbs46 g (26%)
Fat48 g (60%)
Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Key Nutrients

Protein 26 g52%
Fiber 2 g7%
Sodium 1,380 mg60%
Sugars 7 g
Saturated Fat 18 g90%
How we calculate these values

Ingredients

Ingredients have not been verified yet.

Allergens

Contains

Not listed

May contain

Not listed

Similar Items in Burgers & More

View all

Compare with other items

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

Ask AI about this item

Get personalized nutrition advice and meal ideas.

Is this good for muscle gain?Can I eat this while cutting?
Ask AI

Nutrition data is sourced from our database and may vary by location or preparation.