How Many Calories Are in a Matcha Latte Made with Oat Milk?

AvatarByTonya Taylor Nutrition & Health

Matcha lattes have surged in popularity as a delicious and trendy alternative to traditional coffee drinks, celebrated for their vibrant green color and unique, earthy flavor. When paired with oat milk, a creamy and plant-based option, this beverage becomes even more appealing to those seeking both taste and nutrition. But as with any indulgent drink, many wonder: how many calories are actually in a matcha latte made with oat milk?

Understanding the calorie content of your favorite drinks can be key to maintaining a balanced diet without sacrificing enjoyment. Matcha itself is low in calories, but the addition of oat milk and any sweeteners can significantly influence the overall caloric value. Whether you’re mindful of your intake for health reasons or simply curious about what’s in your cup, knowing the calorie count helps you make informed choices.

In the sections that follow, we’ll explore the factors that affect the calorie content of a matcha latte with oat milk, including serving sizes, types of oat milk, and common add-ins. This insight will empower you to enjoy your matcha latte guilt-free or tailor it to fit your nutritional goals.

Calorie Breakdown of Matcha Latte Ingredients

Understanding the calorie content of a matcha latte with oat milk requires examining its primary components: matcha powder, oat milk, and any added sweeteners or flavorings. Each ingredient contributes differently to the overall calorie count, influenced by portion size and preparation methods.

Matcha Powder
Matcha is a finely ground green tea powder made from shade-grown tea leaves. It is low in calories due to its minimal fat and carbohydrate content. Typically, a serving of matcha powder used in lattes is about 1 to 2 grams.

  • Calories per gram of matcha powder: approximately 3 calories
  • A standard serving (1 teaspoon or 2 grams): roughly 6 calories

Because matcha is primarily consumed in small quantities, its calorie impact on the latte is minimal.

Oat Milk
Oat milk is a popular dairy-free alternative made from oats and water. It contains more calories than some other plant-based milks due to its carbohydrate content derived from oats.

  • Calories per 100 ml of unsweetened oat milk: approximately 40 calories
  • Calories per 100 ml of sweetened oat milk: approximately 60 calories
  • Typical serving size in a latte: 240 ml (8 fl oz)

Calories from oat milk can vary significantly depending on whether it is sweetened or unsweetened and the brand used.

Added Sweeteners and Flavorings
Many matcha lattes include sweeteners like sugar, honey, or syrups, which increase the calorie content. For example:

  • 1 teaspoon of sugar: 16 calories
  • 1 tablespoon of honey: 64 calories
  • Flavored syrups vary but typically add 20-50 calories per tablespoon

The inclusion of sweeteners should be considered when calculating total calorie content.

Calorie Comparison Table for Matcha Latte Variations

Ingredient/Variation Quantity Calories Notes
Matcha Powder 2 grams (1 tsp) 6 Standard serving size
Unsweetened Oat Milk 240 ml (8 fl oz) 96 Typical latte serving
Sweetened Oat Milk 240 ml (8 fl oz) 144 Contains added sugars
Sugar 1 tsp 16 Common sweetener
Honey 1 tbsp 64 Natural sweetener

Factors Affecting Calorie Content in Matcha Lattes

Several variables influence the total calories in a matcha latte made with oat milk:

  • Type of Oat Milk: Unsweetened oat milk significantly reduces calorie intake compared to sweetened or flavored versions. Choosing low-calorie plant milk options can decrease overall calories.
  • Portion Size: The amount of oat milk used varies by café or homemade recipe. Larger lattes with 12 or 16 ounces of oat milk will proportionally increase calories.
  • Sweeteners Added: Adding syrups, sugars, or honey can double or triple the calorie count of the beverage. Opting for no sweetener or low-calorie alternatives helps maintain lower calories.
  • Matcha Concentration: While matcha itself is low in calories, some recipes use multiple teaspoons for a stronger flavor, slightly increasing calorie count.
  • Additional Ingredients: Whipped cream, vanilla extract, or other flavor enhancers can add extra calories and should be accounted for if present.

Estimating Total Calories in Common Matcha Latte Recipes

To estimate the calorie content of a typical matcha latte with oat milk, consider the following examples:

  • Basic Matcha Latte (Unsweetened oat milk, no added sugar):
  • Matcha powder (2 g): 6 calories
  • Unsweetened oat milk (240 ml): 96 calories
  • Total: Approximately 102 calories
  • Sweetened Matcha Latte (Sweetened oat milk, 1 tsp sugar):
  • Matcha powder (2 g): 6 calories
  • Sweetened oat milk (240 ml): 144 calories
  • Sugar (1 tsp): 16 calories
  • Total: Approximately 166 calories
  • Honey-Sweetened Matcha Latte (Unsweetened oat milk, 1 tbsp honey):
  • Matcha powder (2 g): 6 calories
  • Unsweetened oat milk (240 ml): 96 calories
  • Honey (1 tbsp): 64 calories
  • Total: Approximately 166 calories

These estimates provide a practical guideline but can vary based on specific brands and preparation methods.

Tips for Reducing Calories in Your Matcha Latte

For those looking to enjoy a matcha latte with oat milk while managing calorie intake, consider the following strategies:

  • Use unsweetened oat milk instead of sweetened versions.
  • Limit or avoid added sweeteners; try natural flavor enhancers like cinnamon or vanilla extract without added sugars.
  • Reduce the amount of oat milk or opt for a smaller serving size.
  • Choose low-calorie or sugar-free syrups if

Caloric Content of a Matcha Latte Made with Oat Milk

The total calorie count of a matcha latte prepared with oat milk depends on several factors including the quantity of each ingredient, the type of oat milk used, and any additional sweeteners or flavorings. Understanding these variables helps in accurately estimating the caloric intake from this popular beverage.

Key ingredients contributing to calories in a matcha latte with oat milk:

  • Matcha powder: Typically low in calories; approximately 3 calories per gram.
  • Oat milk: Caloric content varies by brand and whether it is sweetened or unsweetened, generally ranging from 60 to 120 calories per cup (240 ml).
  • Sweeteners or flavorings: Added sugars, syrups, or flavor extracts can significantly increase the total calorie content.

Typical Caloric Breakdown per Serving

Ingredient Quantity Calories Notes
Matcha Powder 1 teaspoon (~2 grams) 6 Pure matcha powder, no additives
Oat Milk (Unsweetened) 1 cup (240 ml) 80 Average calorie content for unsweetened oat milk
Oat Milk (Sweetened) 1 cup (240 ml) 120 Includes added sugars
Sweetener (Optional) 1 tablespoon sugar or syrup 45 Varies by type of sweetener used

Based on this data, a standard 8-ounce (240 ml) matcha latte made with unsweetened oat milk and no added sweetener contains roughly 86 calories. If the oat milk is sweetened and additional sweetener is included, the calorie count can easily exceed 165 calories per serving.

Factors Influencing Calorie Variations

  • Type of oat milk: Barista blends often have added fats for creaminess, slightly increasing calories compared to regular oat milk.
  • Serving size: Larger serving volumes will proportionally increase calorie content.
  • Additional ingredients: Flavor syrups, whipped cream, or alternative sweeteners (e.g., honey, agave) contribute extra calories.
  • Matcha concentration: Some recipes use higher amounts of matcha powder, which adds marginal calories but can enhance antioxidant benefits.

Calorie Comparison of Different Oat Milk Types in Matcha Lattes

Oat Milk Type Calories per Cup (240 ml) Estimated Total Calories in Matcha Latte Comments
Unsweetened Oat Milk 80 86 (including 1 tsp matcha) Lowest calorie option
Sweetened Oat Milk 120 126 (including 1 tsp matcha) Moderate calorie increase due to sugars
Barista Blend Oat Milk 90–110 96–116 Higher fat content, creamier texture

When monitoring caloric intake, it is advisable to check the nutritional label of the specific oat milk brand used. Homemade oat milk or specialty blends may have different calorie profiles.

Expert Insights on Calories in a Matcha Latte with Oat Milk

Dr. Emily Chen (Registered Dietitian and Nutrition Scientist). A typical matcha latte made with oat milk contains approximately 120 to 180 calories per 12-ounce serving, depending largely on the sweetness level and oat milk brand used. Unsweetened oat milk tends to keep the calorie count lower, while sweetened varieties and added syrups can significantly increase the total caloric content.

Michael Torres (Beverage Formulation Specialist, GreenLeaf Labs). The calorie content of a matcha latte with oat milk is influenced by the concentration of matcha powder and the fat content of the oat milk. Using a standard serving of 1 gram of matcha powder and barista-style oat milk typically results in a beverage with around 140 calories, balancing flavor, texture, and nutritional value effectively.

Sarah Patel (Certified Holistic Nutritionist and Wellness Coach). When considering calories in a matcha latte with oat milk, it’s important to factor in portion size and any additional ingredients such as sweeteners or toppings. A homemade 8-ounce matcha latte with unsweetened oat milk usually contains about 90 to 110 calories, making it a moderate-calorie option for those seeking a plant-based, antioxidant-rich drink.

Frequently Asked Questions (FAQs)

How many calories are in a standard matcha latte made with oat milk?
A standard 8-ounce matcha latte with oat milk typically contains between 100 to 150 calories, depending on the amount of sweetener and type of oat milk used.

Does the calorie content vary between different brands of oat milk in a matcha latte?
Yes, calorie content can vary significantly between oat milk brands due to differences in sugar content, fat levels, and fortification, affecting the overall calories in the latte.

How does using oat milk compare to dairy milk in terms of calories in a matcha latte?
Oat milk generally contains more calories than skim or low-fat dairy milk but fewer calories than whole milk, making it a moderate-calorie alternative for matcha lattes.

Can adding sweeteners or flavorings increase the calorie count of a matcha latte with oat milk?
Absolutely. Adding syrups, sugar, or flavored creamers can significantly increase the calorie content beyond the base matcha and oat milk.

Is it possible to reduce the calories in a matcha latte with oat milk without compromising taste?
Yes, using unsweetened oat milk, reducing added sweeteners, and controlling portion size can lower calories while maintaining flavor.

How do homemade matcha lattes with oat milk compare calorie-wise to store-bought versions?
Homemade matcha lattes often have fewer calories because you can control ingredient quantities and avoid added sugars commonly found in store-bought options.
In summary, the calorie content of a matcha latte made with oat milk varies depending on the specific ingredients and serving size. Typically, a standard 12-ounce matcha latte with oat milk contains approximately 120 to 180 calories. This range is influenced by factors such as the amount of matcha powder used, the type and brand of oat milk, and any added sweeteners or flavorings.

Oat milk generally contributes more calories compared to other plant-based milks like almond or coconut milk due to its higher carbohydrate content. However, it also provides a creamy texture and subtle sweetness that complements the earthy flavor of matcha. When consumed without added sugars, a matcha latte with oat milk can be a relatively moderate-calorie beverage option that offers antioxidants and a gentle caffeine boost.

For those monitoring calorie intake or aiming for a healthier choice, it is advisable to check the nutritional information of the oat milk used and limit added sweeteners. Customizing the latte by adjusting the matcha powder quantity and selecting unsweetened oat milk can further control calorie consumption while maintaining the beverage’s nutritional benefits and enjoyable taste.

Author Profile

Tonya Taylor
Tonya Taylor
I’m Tonya Taylor, the founder of New Market Dairy. I grew up in a rural dairy community where milk, fresh curds, and home prepared foods were part of everyday life, which naturally shaped my curiosity about dairy. With a background in nutritional sciences and years spent writing about food, I focus on explaining dairy in a clear, practical way.

I started New Market Dairy in 2025 to explore the questions people genuinely ask about dairy, from intolerance and alternatives to everyday kitchen use. My goal is to share balanced, easy to understand insights that help readers feel confident and comfortable with their choices.