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Nutrition Breakdown

Fat Boy Burgers Calories — Lowest to Highest

Browse calorie values for Fat Boy Burgers menu items, with official nutrition where available and estimated calories for uncovered items. Updated August 2026.

Coverage

100%

Average Calories

343 kcal

Lowest Item

1 kcal

Highest Item

620 kcal

62 / 62 items resolved USDA database: 30 Estimated: 32

Lowest Calorie Items at Fat Boy Burgers

Use this ranking to find lighter menu options quickly

Full menu →
# Item Category Source Calories
1 Coffee drinks, milkshakes & malts USDA 1 kcal
2 Soup of the day soups & sides USDA 20 kcal
3 Coca-Cola drinks, milkshakes & malts USDA 46 kcal
4 Chili soups & sides USDA 100 kcal
5 Grilled Chicken Salad other stuff USDA 106 kcal
6 Fries soups & sides USDA 129 kcal
7 Chili Cheese Dog dogs USDA 143 kcal
8 Breakfast Wrap breakfast menu USDA 169 kcal
9 Reuben sandwiches USDA 188 kcal
10 Fat Boy Breakfast breakfast menu USDA 197 kcal
11 BLT sandwiches USDA 205 kcal
12 Tuna Melt sandwiches USDA 214 kcal
13 Grilled chicken sandwich on Flat Bread sandwiches USDA 220 kcal
14 Chili Cheese Fries soups & sides USDA 221 kcal
15 Hamburger kids USDA 221 kcal
16 Grilled Chicken Salad other stuff USDA 226 kcal
17 Red Hot Chicago Dog dogs USDA 233 kcal
18 Egg Salad Sandwich sandwiches USDA 246 kcal
19 Hot Dog kids USDA 251 kcal
20 Cheese Fries soups & sides USDA 260 kcal
21 Chicken Tender Basket other stuff USDA 271 kcal
22 Chicken Tenders kids USDA 271 kcal
23 Fried Egg Sandwich breakfast menu USDA 278 kcal
24 Fashion Malts & Shakes drinks, milkshakes & malts USDA 280 kcal
25 Grilled Ham & Cheese sandwiches USDA 314 kcal
26 Grilled Cheese sandwiches USDA 341 kcal
27 Grilled Cheese kids USDA 368 kcal
28 Slim Boy Breakfast breakfast menu USDA 372 kcal
29 Biscuits & Gravy Full breakfast menu Estimated 390 kcal
30 Biscuits & Gravy Half breakfast menu Estimated 390 kcal
Nutrition sync is temporarily paused Missing official items: 32

Highest Calorie Items

Top calorie-dense picks based on current nutrition data

Bacon Burger

burgers 620 kcal

Blue Burger

burgers 620 kcal

Cheeseburger

burgers 620 kcal

Double Cheeseburger

burgers 620 kcal

Fat Boy Burger

burgers 620 kcal

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How Estimated Calories Are Calculated

When official nutrition is unavailable, calorie values are estimated using menu-item keywords and then adjusted by portion size. These values are directional for comparison, not medical nutrition advice.

  • Base estimate: item-name tokens (for example burger, fries, salad, pizza, shake) map to baseline calorie ranges.
  • Portion weighting: ounce and gram values adjust the estimate (about 8 oz = 1.0x, about 230 g = 1.0x), then the value is capped within a safe range.
  • Size modifiers: small/kids items apply a lower multiplier, while large/xl/family/double items apply a higher multiplier.
  • Final output: estimates are rounded to whole calories and shown as Estimated in the source column.

Fat Boy Burgers Calories — Frequently Asked Questions

Questions about calorie values, estimates, and nutrition coverage.

How many Fat Boy Burgers items have calorie data?
Fat Boy Burgers currently has calorie values for 62 of 62 menu items (100% coverage). We first use official nutrition sources when available, then apply estimation fallback for unresolved items.

What is the lowest-calorie item at Fat Boy Burgers?
The lightest item currently tracked is Coffee at approximately 1 kcal. Use the ranked table to find other low-calorie meal choices.

Are Fat Boy Burgers calorie values official or estimated?
This page uses a hybrid model: 30 items use USDA database estimates, while 32 items are algorithmic estimates. Both are directional for comparison, not medical guidance.

Where can I compare calories and prices together?
Use the Fat Boy Burgers full menu prices page for price-focused browsing and the cheapest menu items page for budget picks. This calories page is built for nutrition-first filtering.

How to Use This Calories Page

Use this page to compare low-calorie and high-calorie items quickly before ordering. Official values are used where available, and estimated values fill the coverage gap for broad menu discovery.

Estimated values are directional and may vary by location, preparation style, and serving size. For strict dietary planning, cross-check with the official restaurant nutrition statement when available.