Starbucks Chai Latte has more caffeine than Starbucks Matcha Latte (grande): 95mg vs 90mg in the same 16 oz grande. That is a 5mg gap, and since the servings match, the per-serving number is the whole story.
Starbucks Matcha Latte (grande) vs Starbucks Chai Latte: the numbers
| Starbucks Matcha Latte (grande) | Starbucks Chai Latte | |
|---|---|---|
| Caffeine per serving | 90mg per 16 oz grande | 95mg per 16 oz grande |
| Caffeine per fl oz | 5.6mg | 5.9mg |
| Servings to reach 400mg (FDA context) | 4.4 | 4.2 |
Sources: Starbucks Matcha Latte (grande)'s figure is verified in our Starbucks Matcha Latte (grande) caffeine guide against Caffeine Informer Starbucks guide (source); Starbucks Chai Latte's figure is verified in our Starbucks Chai Latte guide against Starbucks nutrition listing (source).
Which one should you pick?
Pick Starbucks Matcha Latte (grande) when you want the lighter dose or a slower ramp, and Starbucks Chai Latte when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.
For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.
Related reading
- Starbucks Matcha Latte (grande): the full caffeine guide
- Starbucks Chai Latte: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
As an Amazon Associate, Barista Life earns from qualifying purchases.
Gear from this guide
FAQ
Does Starbucks Matcha Latte (grande) or Starbucks Chai Latte have more caffeine? Starbucks Chai Latte: 95mg per 16 oz grande versus 90mg per 16 oz grande for Starbucks Matcha Latte (grande).
Which is stronger per ounce? Starbucks Chai Latte, at about 5.9mg per fluid ounce versus 5.6mg for Starbucks Matcha Latte (grande).
Barista Life runs on coffee people. Browse the Barista Life shop to support the site.
Get the good coffee stuff
One email a week: what we verified, what is worth buying, and what is not. No spam, unsubscribe any time.