Jack in the Box under 400 calories: 24 orders, ranked

Of the 73 single orders we track at Jack in the Box, 24 come in at or under 400 calories — 33%. The most protein in one item under 400 is the Southwest Salad with Grilled Chicken without Dressing or Crunchy Toppings, 30 g for 290 calories; the most filling by protein and fiber per calorie is the Garden Salad with Grilled Chicken without Dressing or Crunchy Toppings (25 g protein, 3 g fiber, 210 cal). 13 entrées fit under 400; 26 do not.

Source: Jack in the Box nutrition guide (official) · Data refreshed September 16, 2026

• 24 orders under 400
• 30g most protein in one item
• 39g protein in a full meal
• 26 entrées over 400

As of October 2026, 24 of the 73 Jack in the Box single orders we track come in at or under 400 calories, and the most protein in a complete Jack in the Box meal under 400 is 39 g (A Southwest Salad with Grilled Chicken without Dressing or Crunchy Toppings and a Milk).

Three complete Jack in the Box meals under 400 calories

Under 400, the most-protein meal is built on the Southwest Salad with Grilled Chicken without Dressing or Crunchy Toppings (290 cal), which leaves 110 calories for its sides and drink. One meal-sized entrée, up to two different sides and a drink — the MinMax app's meal and the best under the cap, drink included (water only where no published drink fits; the lightest meal takes a zero-calorie drink, or water). The lightest meal is unchanged from under 300; the others use the extra 100 calories.

Build your own Jack in the Box order under 400 calories → Swap any item, add a side, share the link.

Every Jack in the Box order under 400 calories, ranked by protein

Single orders only — no desserts, kids' meals, combos, sauces or toppings — by grams of protein, then calories. The median order under 400 is 285 calories and 13 of the 24 are entrées. Figures as Jack in the Box published them, rounded to whole numbers (how we check them).

What 400 calories buys at Jack in the Box

Going from 300 to 400 calories adds 10 orders: Grilled Cheese Sandwich (330), Hamburger (330), Tacos (2) (340), Cheeseburger (370), Bacon Breakfast Jack (380), Chicken Nuggets (8) (380), Classic Crispy Jack Wrap (380) and Spicy Crispy Jack Wrap (380) and 2 more.

What doesn't fit under 400

26 of 39 Jack in the Box entrées are over 400 calories; the lightest of them, the Garden Salad with Crispy Chicken Strips without Dressing or Crunchy Toppings, misses by 10 calories at 410. With more room, see Jack in the Box under 500. Tighter budget: Jack in the Box under 300. Closest misses: Garden Salad with Crispy Chicken Strips without Dressing or Crunchy Toppings (410), Jr. Jumbo Jack Cheeseburger (440), Fish Sandwich (Seasonal) (450), Crispy Chicken Strips (3) (470) and Jr. Bacon Cheeseburger (470).

More at Jack in the Box

• Jack in the Box calories & nutrition (93 items listed)
• Jack in the Box under 300 calories (14 orders)
• Jack in the Box under 500 calories (38 orders)
• Jack in the Box under 600 calories (49 orders)
• High-protein Jack in the Box orders (14 items)
• Jack in the Box calorie calculator (build an order under your cap)

Under 400 calories at other chains

The same cap at 3 Burgers chains, or the cross-chain pillar: fast food under 400 calories.

• Carl's Jr. under 400
• Hardee's under 400
• Shake Shack under 400