Nutrition Breakdown

303 Diner Calories — Lowest to Highest

Browse calorie values for 303 Diner menu items, with official nutrition where available and estimated calories for uncovered items. Updated August 2026.

Coverage

100%

Average Calories

335 kcal

Lowest Item

10 kcal

Highest Item

620 kcal

125 / 125 items resolved USDA database: 28 Estimated: 97

Lowest Calorie Items at 303 Diner

Use this ranking to find lighter menu options quickly

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# Item Category Source Calories
1 303 Sirloin Steak from the broiler Estimated 10 kcal
2 Hot Tea beverages Estimated 10 kcal
3 Ribeye Steak from the broiler Estimated 10 kcal
4 Steak Quesadillas appetizers Estimated 10 kcal
5 Coffee beverages Estimated 40 kcal
6 Homemade Meatloaf open faced hot sandwiches USDA 65 kcal
7 Charbroiled Steak Salad salads Estimated 95 kcal
8 Roast Turkey from the deli USDA 106 kcal
9 Breaded Veal Cutlet open faced hot sandwiches USDA 107 kcal
10 Iced Tea beverages Estimated 135 kcal
11 Chopped Sirloin Steak from the broiler USDA 146 kcal
12 Tex- Mex Burger specialty burgers USDA 159 kcal
13 Center Cut Bone- In Pork Chops from the broiler USDA 170 kcal
14 Seafood Platter from the sea Estimated 170 kcal
15 Caesar Salad salads Estimated 180 kcal
16 Chef's Salad salads Estimated 180 kcal
17 Cobb Salad salads Estimated 180 kcal
18 Greek Salad salads Estimated 180 kcal
19 Reuben classic sandwiches USDA 188 kcal
20 Reuben Burger specialty burgers USDA 188 kcal
21 Roast Turkey open faced hot sandwiches USDA 203 kcal
22 Chicken Or Tuna Salad from the deli USDA 218 kcal
23 Soup Of The Day homemade soups Estimated 220 kcal
24 Roast Sirloin Of Beef open faced hot sandwiches USDA 221 kcal
25 French Dip classic sandwiches USDA 224 kcal
26 Blt classic sandwiches USDA 231 kcal
27 Roast Beef from the deli USDA 232 kcal
28 Tuna Melt classic sandwiches USDA 233 kcal
29 Charbroiled Chicken Breast classic sandwiches USDA 235 kcal
30 Club Sandwich classic sandwiches USDA 243 kcal
Nutrition sync is temporarily paused Missing official items: 97

Highest Calorie Items

Top calorie-dense picks based on current nutrition data

Cheeseburger

li'l tots menu 620 kcal

Hamburger

li'l tots menu 620 kcal

Milkshakes Choc. Van. Straw

li'l tots menu 620 kcal

Mushrooms/ Swiss Burger

specialty burgers 620 kcal

5 Chicken Fingers

appetizers 430 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.

303 Diner Calories — Frequently Asked Questions

Questions about calorie values, estimates, and nutrition coverage.

How many 303 Diner items have calorie data?

303 Diner currently has calorie values for 125 of 125 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 303 Diner?

The lightest item currently tracked is 303 Sirloin Steak at approximately 10 kcal. Use the ranked table to find other low-calorie meal choices.

Are 303 Diner calorie values official or estimated?

This page uses a hybrid model: 28 items use USDA database estimates, while 97 items are algorithmic estimates. Both are directional for comparison, not medical guidance.

Where can I compare calories and prices together?

Use the 303 Diner 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.