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3x3 Burger

3x3 Burger at In-N-Out Burger has 790 calories, 48g protein, 44g carbs and 47g fat — sourced from In-N-Out Burger Nutrition Facts, not AI guesses. Three beef patties, three slices American cheese, lettuce, tomato, onion, spread on bun.

3x3 Burger
790calories
48gprotein
44gcarbs
47gfat
High protein Contains dairy, gluten
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At In-N-Out Burger, the 3x3 Burger is a solid high-protein order. That works out to 6.1g of protein per 100 calories — 23g above the 25g In-N-Out Burger average. Its macros land at roughly 24% of calories from protein, 22% from carbs and 54% from fat. Contains dairy, gluten.

Source: In-N-Out Burger Nutrition Facts ↗, last verified Jun 18, 2026. Menus change periodically; values may vary by location. How we verify →

See all 17 In-N-Out Burger meals →  ·  Highest-protein In-N-Out Burger meals →  ·  In-N-Out Burger nutrition calculator →

More from In-N-Out Burger

4x4 Burger · 62g protein 3x3 Protein Style & Diet Coke · 44g protein Double-Double (mustard & ketchup) & Diet Coke · 37g protein Double-Double w/Onion & Spread · 34g protein Double-Double Protein Style · 30g protein Flying Dutchman · 30g protein

3x3 Burger — common questions

How much protein is in the 3x3 Burger at In-N-Out Burger?
The 3x3 Burger has 48g of protein. It's the #2 highest-protein item on the In-N-Out Burger menu we track. It also has 790 calories, 44g carbs and 47g fat, per In-N-Out Burger Nutrition Facts.
How many calories are in the 3x3 Burger?
The 3x3 Burger at In-N-Out Burger has 790 calories, according to In-N-Out Burger Nutrition Facts.
Is the 3x3 Burger high in protein?
Yes — at 48g of protein it clears the 30g high-protein bar, ands the #2 highest-protein item on the In-N-Out Burger menu we track.
Does the 3x3 Burger contain allergens?
Per In-N-Out Burger Nutrition Facts, the 3x3 Burger contains dairy, gluten. Preparation and cross-contact vary by location — check with the restaurant if you have an allergy.
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