Whataburger under 400 calories: 37 orders, ranked

Of the 134 Whataburger items we track, 37 are single orders at or under 400 calories — 28% of the menu. The most protein in one item under 400 is the Buffalo Ranch Chicken Salad with Grilled Chicken, 37 g for 370 calories; the most filling by protein and fiber per calorie is the Garden Salad with Grilled Chicken (34 g protein, 6 g fiber, 290 cal). 22 entrées fit under 400; 53 do not.

Source: Whataburger nutrition guide (official) · Data refreshed September 12, 2026

• 37 orders under 400
• 37g most protein in one item
• 37g protein in a full meal
• 53 entrées over 400

As of September 2026, 37 of the 134 Whataburger items we track fit under 400 calories, and the most protein in a complete Whataburger meal under 400 is 37 g (A Buffalo Ranch Chicken Salad with Grilled Chicken and a water).

Three complete Whataburger meals under 400 calories

Under 400, the most-protein entrée — the Buffalo Ranch Chicken Salad with Grilled Chicken, 370 cal — leaves 30 calories for a side. Entrée first, then a side, then a drink if there is room — the same greedy order the MinMax app uses (water unless a shake adds 10 g of protein). The lightest meal is unchanged from under 300; the others use the extra 100 calories.

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

Every Whataburger order under 400 calories, ranked by protein

Single orders only — no kids' meals, combos, sauces or toppings — by grams of protein, then calories. The median order under 400 is 310 calories and 22 of the 37 are entrées. Figures as Whataburger published them (how we check them).

What 400 calories buys at Whataburger

Going from 300 to 400 calories adds 22 orders: #7 Whataburger Jr.® (310), Buttermilk Biscuit (310), Egg Sandwich (310), Jalapeño Cheddar Biscuit (310), Hot Lemon Pie (320), Grilled Veggie Wrap (330), #16 Chicken Fajita Taco (340) and #21 Breakfast On A Bun® with Bacon (360) and 14 more.

What doesn't fit under 400

53 of 75 Whataburger entrées are over 400 calories; the lightest of them, the #20 Taquito with Cheese & Sausage, misses by 20 calories at 420. With more room, see Whataburger under 500. Tighter budget: Whataburger under 300. Closest misses: #20 Taquito with Cheese & Sausage (420), #8 Double Meat Whataburger Jr.® (420), #11 Grilled Chicken Sandwich with Whatasauce™ (430), Cobb Salad with Grilled Chicken (430) and Small Vanilla Malt (16 fl oz) (430).

More at Whataburger

• Whataburger calories & nutrition (all 134 items)
• Whataburger under 300 calories (15 orders)
• Whataburger under 500 calories (64 orders)
• Whataburger under 600 calories (87 orders)
• High-protein Whataburger orders (33 items)
• Whataburger 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.

• Culver's under 400
• Dairy Queen under 400
• McDonald's under 400