In-N-Out Secret Menu Calories: 3x3, 4x4 & Animal Style
A 3x3 is about 790 calories and a 4x4 about 970 before fries. Calories for every In-N-Out secret menu item: Animal Style, Protein Style, Flying Dutchman, shakes.
A 3x3 burger at In-N-Out is about 790 calories, while a 4x4 is about 970 calories before fries or a shake. In-N-Out does not publish values for its secret menu, so every number here is calculated from the official In-N-Out nutrition chart (January 2026). The method is shown for each item.
Secret Menu Burgers
Multi-Patty Burgers
| Burger | Calories | Protein | Description |
|---|---|---|---|
| 3x3 | ~790 | ~48g | 3 patties, 3 cheese slices |
| 4x4 | ~970 | ~62g | 4 patties, 4 cheese slices |
| 3x3 Protein Style | ~640 | ~44g | Lettuce wrap, 3 patties |
| 4x4 Protein Style | ~820 | ~58g | Lettuce wrap, 4 patties |
How We Calculate Multi-Patty Burgers
The official chart gives the Cheeseburger (1 patty, 1 slice) at 430 calories and the Double-Double (2 patties, 2 slices) at 610. The only difference between them is one patty and one slice of cheese, so that pair is worth 180 calories (13g fat, 14g protein).
| Item | How it's calculated | Calories |
|---|---|---|
| Extra patty + cheese slice | Double-Double 610 − Cheeseburger 430 | 180 |
| One slice of American cheese | Cheeseburger 430 − Hamburger 360 | 70 |
| 3x3 | Double-Double 610 + 180 | ~790 |
| 4x4 | Double-Double 610 + 2 × 180 | ~970 |
| 3x3 Protein Style | Protein Style Double-Double 460 + 180 | ~640 |
| 4x4 Protein Style | Protein Style Double-Double 460 + 2 × 180 | ~820 |
Animal Style Burgers
| Burger | Estimated Calories | Notes |
|---|---|---|
| Animal Style Hamburger | ~420 | +60 cal from mustard-grilled patty, pickles, extra spread |
| Animal Style Cheeseburger | ~500 | Regular + Animal Style additions |
| Animal Style Double-Double | ~710 | Most popular secret menu burger |
| Animal Style 3x3 | ~890 | 3x3 (~790) + Animal Style (~100) |
| Animal Style 4x4 | ~1,070 | 4x4 (~970) + Animal Style (~100) |
What "Animal Style" Adds
Animal Style burger modifications include:
- Mustard-grilled patty (+10 calories, adds flavor)
- Extra spread (+50 calories)
- Pickles (+5 calories)
- Grilled onions (instead of raw) (+5 calories)
- Total addition: ~70-100 calories per burger
Flying Dutchman
The Flying Dutchman is just meat and cheese - no bun, no vegetables, no spread. Two patties and two slices of cheese are 2 × 180 calories.
| Item | Estimated Calories | Protein | Fat | Carbs |
|---|---|---|---|---|
| Flying Dutchman (2 patties, 2 slices) | ~360 | ~28g | ~26g | ~4g |
| Double Flying Dutchman (4 patties, 4 slices) | ~720 | ~56g | ~52g | ~8g |
Perfect for: Keto diets and extreme low-carb eating
Protein Style Options
All burgers can be ordered Protein Style (lettuce wrap instead of bun). The first three rows are official values:
| Burger | Regular | Protein Style | Calories Saved |
|---|---|---|---|
| Hamburger | 360 | 210 | 150 |
| Cheeseburger | 430 | 280 | 150 |
| Double-Double | 610 | 460 | 150 |
| 3x3 | ~790 | ~640 | ~150 |
| 4x4 | ~970 | ~820 | ~150 |
Secret Menu Fries
Animal Style Fries
| Item | Estimated Calories | How it's calculated |
|---|---|---|
| Animal Style Fries | ~710 | Fries 360 + 2 cheese slices 140 + 2 spread portions 200 + grilled onions 10 |
| Cheese Fries (no spread) | ~500 | Fries 360 + 2 cheese slices 140 |
See our detailed Animal Style Fries Calories guide.
Fries Preparation Variations
In-N-Out publishes one value for fries (360 calories, 125 g). Well-done and light fries are cooked longer or shorter, but there are no separate official numbers, so count them as regular fries.
| Style | Calories | Description |
|---|---|---|
| Regular | 360 | Standard cooking (official) |
| Well-Done | ~360 | Extra crispy |
| Light | ~360 | Softer, less cooked |
| No Salt | 360 | Standard, just no salt |
Secret Menu Shakes
Neapolitan Shake
| Shake | Calories | Description |
|---|---|---|
| Neapolitan | ~600 | Mix of chocolate, vanilla, strawberry |
| Black & White | ~600 | Chocolate and vanilla mixed |
The official 15 oz shakes are 590 (vanilla) to 610 calories (chocolate, strawberry), so mixed flavors land at about 600.
Complete Secret Menu List
Burger Modifications
| Secret Menu Item | What It Is | Estimated Calories |
|---|---|---|
| Animal Style | Mustard-grilled patty, extra spread, pickles, grilled onions | +70-100 cal |
| Protein Style | Lettuce wrap instead of bun | -150 cal |
| 3x3 | Triple patty, triple cheese | ~790 cal |
| 4x4 | Quad patty, quad cheese | ~970 cal |
| Flying Dutchman | Just patties and cheese, nothing else | ~360 cal |
| Monkey Style | Animal Style + fries on burger | Varies |
| Mustard Grilled | Patty cooked in mustard | +10 cal |
| Whole Grilled Onion | Entire slice of grilled onion | +10 cal |
| Chopped Chilies | Hot peppers added | 0 cal |
| Extra Toast | Bun toasted longer | 0 cal |
Fries Modifications
| Secret Menu Item | What It Is | Estimated Calories |
|---|---|---|
| Animal Style Fries | Cheese, spread, grilled onions | ~710 cal |
| Cheese Fries | Just melted cheese | ~500 cal |
| Well-Done | Extra crispy | ~360 cal |
| Light | Less cooked, softer | ~360 cal |
| No Salt | No salt added | 360 cal |
Drink Modifications
| Secret Menu Item | What It Is | Calories |
|---|---|---|
| Neapolitan Shake | All three flavors mixed | ~600 |
| Black & White | Chocolate + Vanilla | ~600 |
| Root Beer Float | Root beer + vanilla shake | ~750 |
| Arnold Palmer | Half lemonade, half tea | ~160 |
Secret Menu Calorie Comparison Chart
From Lowest to Highest Calories
| Rank | Secret Menu Item | Calories |
|---|---|---|
| 1 | Hamburger Protein Style | 210 |
| 2 | Cheeseburger Protein Style | 280 |
| 3 | Flying Dutchman | ~360 |
| 4 | Animal Style Hamburger | ~420 |
| 5 | Double-Double Protein Style | 460 |
| 6 | Cheese Fries | ~500 |
| 7 | Animal Style Cheeseburger | ~500 |
| 8 | 3x3 Protein Style | ~640 |
| 9 | Animal Style Fries | ~710 |
| 10 | Animal Style Double-Double | ~710 |
| 11 | Double Flying Dutchman | ~720 |
| 12 | 3x3 | ~790 |
| 13 | 4x4 Protein Style | ~820 |
| 14 | Animal Style 3x3 | ~890 |
| 15 | 4x4 | ~970 |
| 16 | Animal Style 4x4 | ~1,070 |
How to Fit Secret Menu Items Into Your Diet
For Keto/Low Carb
Best choices:
- Flying Dutchman (~4g carbs)
- Any Protein Style burger (9-12g carbs)
- 3x3 or 4x4 Protein Style for high protein
For Weight Loss
- Stick to Protein Style options
- Avoid Animal Style additions (+70-100 cal)
- Skip fries entirely
For Bulking
- 4x4 provides ~62g protein
- Animal Style 4x4 + Fries = ~1,430 calories
- Add a shake for a 2,000+ calorie meal
Important Notes
How these numbers are made: In-N-Out doesn't publish official nutrition for secret menu items. Our calculations use:
- The official January 2026 values for the Hamburger, Cheeseburger, Double-Double, Protein Style burgers, fries and shakes
- Differences between those official items for an extra patty (+180 with cheese) and a cheese slice (70)
- The spread packet (100) and grilled onions (10) from In-N-Out's condiment list
Animal Style burger additions (extra spread, pickles, mustard grilling) are rougher estimates, because the amount of spread varies.
For official menu items with verified nutrition, use our In-N-Out Calorie Calculator.
Related Guides
- In-N-Out Calorie Calculator
- In-N-Out Animal Style Fries Calories
- In-N-Out Meal Calories
- High Protein In-N-Out Orders
Conclusion
The In-N-Out secret menu ranges from the ultra-low-carb Flying Dutchman (~360 cal) to the massive Animal Style 4x4 (~1,070 cal). Going Protein Style saves 150 calories on any burger. Use our In-N-Out Calorie Calculator to add up your order.