Starbucks Iced Protein Matcha Calories & Nutrition
By Anirudh Saraya · Last checked:
A Grande Iced Protein Matcha has 260 calories and 65mg of caffeine when made with the standard 2% Milk.
Source: Starbucks' published US nutrition for the standard recipe. Customizations in the calculator are estimates. How we calculate

Iced Protein Matcha nutrition by size
| Size | Calories | Caffeine | Fat | Carbs | Protein | Sugar |
|---|---|---|---|---|---|---|
| Tall | 150 | 35mg | 3g | 14g | 18g | 13g |
| Grande | 260 | 65mg | 4.5g | 25g | 31g | 23g |
| Venti | 420 | 95mg | 7g | 38g | 50g | 36g |
A Grande (16 fl oz) Starbucks Iced Protein Matcha has 260 calories, 31 g protein, 23 g sugar and about 65 mg of caffeine. A Tall has 150 calories and 18 g protein, and a Venti 420 calories and 50 g. Protein-boosted Milk supplies the protein, and matcha supplies the caffeine.
What's in an Iced Protein Matcha
Starbucks makes it with matcha, ice, Protein-boosted Milk and Classic syrup. The recipe uses 2 / 3 / 4 scoops of matcha and 2 / 3 / 4 pumps of Classic syrup for Tall / Grande / Venti, per Starbucks recipe data. Starbucks lists whey protein isolate as the added protein.
Milk and customization swaps
Swaps are shown as the direction of change against the standard recipe. Starbucks' product pages don't publish per-drink numbers for each swap, so check the Starbucks app or our calculator for an estimate of your exact order.
| Swap | Effect on calories | Notes |
|---|---|---|
| Fewer Classic pumps | Fewer calories and sugar | Protein stays the same |
| Sugar-free vanilla instead of Classic | Fewer calories and sugar | Starbucks sells this as a Sugar-Free Vanilla Protein Matcha |
| Regular 2% or another milk | Not calculated | Starbucks doesn't publish the milk portion, so the calculator keeps the listed calories |
Starbucks doesn't publish the milk portion for this drink, so the calculator keeps the listed calories if you change the milk.
Syrup pumps and calories
Classic syrup: 2 / 3 / 4 pumps (Tall / Grande / Venti), per Starbucks recipe data. Starbucks doesn't list nutrition per pump on its product pages. The figure most sites quote is about 20 calories and 5 g of sugar for one pump of a standard syrup such as Classic or Vanilla. Treat that as an estimate (unverified), not a Starbucks number. Sugar-free vanilla syrup adds almost no calories. For pump counts across the menu, see our Starbucks syrup calories per pump guide.
Lower-calorie ways to order
- Ask for sugar-free vanilla instead of Classic.
- Ask for 1 or 2 pumps of Classic in a Grande.
- Order a Tall: 150 calories and 18 g protein.
- Compare other options in our high-protein Starbucks drinks guide.
Build your exact order
Open the Starbucks Calorie Calculator to pick your Iced Protein Matcha size, syrup pumps and toppings and see the calories update as you go.
Similar drinks
- Protein Matcha calories
- Iced Matcha Latte calories
- Iced Vanilla Protein Latte calories
- Iced Caramel Protein Latte calories
- Iced Lavender Cream Matcha calories
Source: Starbucks.com, Iced Protein Matcha nutrition (US menu, standard recipe).
Iced Protein Matcha FAQs
How much protein is in a Iced Protein Matcha?
18 g in a Tall, 31 g in a Grande and 50 g in a Venti, per Starbucks.
How much caffeine is in it?
About 35 mg in a Tall, 65 mg in a Grande and 95 mg in a Venti, from matcha, per Starbucks.
How many calories are in a Venti?
A Venti (24 fl oz) has 420 calories, 50 g protein and 36 g sugar, per Starbucks.
How does it compare with a regular Iced Matcha Latte?
A Grande Iced Matcha Latte has 190 calories and 9 g protein, against 260 calories and 31 g protein here, per Starbucks.
Want a different milk, extra syrup or toppings? Customize it in the Starbucks calorie calculator or browse all drinks.
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