Jack In The Box Sourdough Jack calories article
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Jack in the Box’s Sourdough Jack is one of the chain’s signature and most popular sandwiches for the last 20 years.

This delicious cheeseburger, which has been on the menu since 1993, comprises a 100 percent beef patty with bacon, tomatoes, Swiss-style cheese, mayonnaise, and also ketchup served between two slices of toasted sourdough bread.

Although it may seem simple at first glance, the Sourdough Jack’s flavor is quite complex. In fact, it’s so good that it’s still rated as one of the best and most craveable burgers in the fast-food world.

However, with 700 calories per sandwich, it’s probably not the best dietary choice you can make on a daily basis. But if you only eat one of these delicious sourdough bread sandwiches every once in a while, then you probably have nothing to worry about.

Customers really love the Sourdough Jack, even more so than the Jumbo Jack Cheeseburger, which is one of the chain’s staples. So if you can’t control yourself, stay away from them altogether.

Calories and Nutrition Facts for a Sourdough Jack Sandwich From Jack In The Box

One Sourdough Jack sandwich weighs 227 grams on average and contains 700 calories. Of those 700 calories, 410 are from fat, 156 are from carbs, and 140 are from protein.

Below are the nutrition facts for Jack In The Box’s Sourdough Jack Sandwich.

Nutritional Information – Sourdough Jack

  • Calories: 700
  • Calories From Fat: 410
  • Fat: 45g
  • Saturated Fat: 15g
  • Trans Fat: 1.5g
  • Cholesterol: 95mg
  • Sodium: 1180mg
  • Carbohydrates: 39g
  • Fiber: 3g
  • Sugars: 7g
  • Protein: 35g


The following allergens are present in a Sourdough Jack sandwich:

  • Soy
  • Egg
  • Milk
  • Wheat

Ingredients and Allergens info via: Jack In The Box.


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