Nutrition Breakdown

Zephyr on the Charles Calories — Lowest to Highest

Browse calorie values for Zephyr on the Charles menu items, with official nutrition where available and estimated calories for uncovered items. Updated July 2026.

Coverage

100%

Average Calories

283 kcal

Lowest Item

1 kcal

Highest Item

2200 kcal

121 / 121 items resolved USDA database: 84 Estimated: 37

Lowest Calorie Items at Zephyr on the Charles

Use this ranking to find lighter menu options quickly

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# Item Category Source Calories
1 Freshly Brewed Seattle's Best Coffee awaken your senses! USDA 1 kcal
2 Espresso drinks USDA 9 kcal
3 Selection Of Tazo Teas awaken your senses! USDA 9 kcal
4 Single/Twin Steamed Maine Lobster main courses Estimated 10 kcal
5 Build Your Own Salad salads USDA 21 kcal
6 Vegetable Rigatoni fork & knife USDA 32 kcal
7 Soft Drinks drinks USDA 34 kcal
8 Latte drinks USDA 43 kcal
9 Butternut Squash Bisque soups and salads USDA 45 kcal
10 Local Block Island Swordfish main courses USDA 47 kcal
11 Selection Of Juices awaken your senses! USDA 47 kcal
12 Seasonal Fruits And Berries fruits and cereals USDA 52 kcal
13 Oysters On The Half Shell appetizers USDA 62 kcal
14 Seared Shrimp And Scallops main courses USDA 65 kcal
15 Organic Rice Noodle Stir Fry gluten free & vegetarian USDA 68 kcal
16 Mussels Fra Diavolo pasta USDA 73 kcal
17 Fettuccini With Clams pasta USDA 75 kcal
18 Steel Cut Oatmeal fruits and cereals USDA 75 kcal
19 Three Cheese Agnolotti pasta USDA 75 kcal
20 Rustic Bolognese fork & knife USDA 80 kcal
21 Rustic Bolognese pasta USDA 80 kcal
22 Yogurt Parfait fruits and cereals USDA 84 kcal
23 Layered Vegetable Casserole gluten free & vegetarian USDA 85 kcal
24 New England Clam Chowder soups and salads USDA 93 kcal
25 Organic Rice Noodle Stir Fry gluten free & vegetarian USDA 106 kcal
26 Roasted Half Chicken main courses USDA 114 kcal
27 Chicken Scallopini main courses USDA 120 kcal
28 Steamed Mussels appetizers USDA 120 kcal
29 Butternut Squash Bisque gluten free & vegetarian USDA 126 kcal
30 Vegetable Rigatoni fork & knife USDA 127 kcal
Nutrition sync is temporarily paused Missing official items: 37

Highest Calorie Items

Top calorie-dense picks based on current nutrition data

California Pizza

flat bread pizzas 2200 kcal

California Pizza

flatbread pizzas 2200 kcal

New England Lobster Roll

sandwiches 571 kcal

New England Lobster Roll

main courses 571 kcal

Bat-Ter Up

sandwiches 464 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.

Zephyr on the Charles Calories — Frequently Asked Questions

Questions about calorie values, estimates, and nutrition coverage.

How many Zephyr on the Charles items have calorie data?

Zephyr on the Charles currently has calorie values for 121 of 121 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 Zephyr on the Charles?

The lightest item currently tracked is Freshly Brewed Seattle's Best Coffee at approximately 1 kcal. Use the ranked table to find other low-calorie meal choices.

Are Zephyr on the Charles calorie values official or estimated?

This page uses a hybrid model: 84 items use USDA database estimates, while 37 items are algorithmic estimates. Both are directional for comparison, not medical guidance.

Where can I compare calories and prices together?

Use the Zephyr on the Charles 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.

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