A Venti Starbucks Flat White with oatmilk contains 265 calories.
A Venti Starbucks Flat White with oatmilk contains 195mg of caffeine.
A Venti Starbucks Flat White with oatmilk has 18.2g of sugar out of 38.7g of total carbohydrates.
A Venti Starbucks Flat White with oatmilk contains 5.8g of protein and 12.5g of total fat (2.8g saturated).
Standard recipe, no milk changes or other modifications: Milk, Brewed Espresso..
About the calorie calculator
Frequently asked questions
This calculator starts with the official Starbucks nutrition data for each drink and size. When you add, remove, or swap ingredients, it adjusts the calorie and macronutrient totals in real time based on the nutritional contribution of each individual ingredient.
Yes. Use the ingredient list below the drink selector to add, remove, or swap any ingredient — milk, syrups, sauces, toppings, and more. The nutrition label updates instantly to reflect your custom order.
The base nutrition data comes directly from Starbucks' official nutritional disclosures. Custom modifications are estimated using per-serving nutritional data for each ingredient. Results are an approximation and may vary slightly from what Starbucks reports for fully custom drinks.
No. This is an independent nutrition calculator created to help customers estimate calories and macros in their Starbucks orders. We are not affiliated with, endorsed by, or sponsored by Starbucks Corporation. All nutritional data is sourced from publicly available Starbucks nutrition information.