PortionVerityRestaurant nutrition calculators are useful only when you understand what they actually calculate. A result such as “540 calories and 45 g protein” is normally a sum of published standard ingredient portions, not a laboratory measurement of the meal on your table. That distinction is essential when menus are customizable.
Step 1: Write down the full order
List the serving format and every ingredient: tortilla or bowl, rice, beans, protein, vegetables, salsa, cheese, dressing, sides and drinks. A vague description such as “chicken bowl” is not enough. For customized orders, you need the actual choices.
Step 2: Find the restaurant's official nutrition table
Prefer a chain's own current published nutrition guide or calculator. Record the publication edition and how the restaurant defines each item. A “serving” could be one tortilla, four ounces of rice, three and a half ounces of protein, or one fluid ounce of salsa. Those are not interchangeable measurements.
For examples, compare Chipotle's official guide with QDOBA's November 2026 brochure. Our website preserves the two restaurants' different portion conventions rather than converting every item into an invented universal scoop.
Step 3: Add each nutrient column separately
Calories, protein grams, carbohydrate grams, fat grams and sodium milligrams have different units. Add calories to calories and sodium to sodium. If an extra published protein portion is requested, multiply only that portion, rather than doubling the entire meal. For example, adding a second 4 oz Chipotle chicken serving contributes another 180 calories and 32 g protein in its paper table.
Step 4: Respect rounding and missing data
Restaurant values are often rounded. A sum of rounded numbers can differ from an official signature entrée total. The same recipe may have different ingredient amounts from the standard serving lines. If a seasonal or limited-time ingredient isn't listed, mark it unknown rather than substituting a different item and presenting a precise total.
Step 5: Explain what the result doesn't mean
A meal calculator cannot know the precise scoop used, predict allergen cross-contact, or determine the medical appropriateness of a diet. Even the same restaurant may update a recipe. If an exact nutrient number is consequential, check current disclosures and seek appropriate professional advice.
Try the method
Use the live restaurant builder, inspect the ingredient lookup, then compare two combinations. Our methodology page describes exactly how this prototype's sums and goal finder work. No account is required, and the calculation runs in your browser.
Source edition: Chipotle 2025 file edition and QDOBA November 2026 edition. Published standard serving estimates; values can change. Information only, not medical or allergy-safety guidance.