How much caffeine is in Starbucks Iced Cream Chai?
A Grande (16 fl oz) Starbucks Iced Cream Chai has 60 mg of caffeine.
That's about half a cup of brewed coffee, and 15% of the 400 mg a day the FDA cites for most healthy adults.
Source: starbucks.com · checked 10 Nov 2026
Lavender Cream, Mango Cream, Banana Bread, Caramel Brulée Cream and Pumpkin Cream chais list the same caffeine per size.
When did you have it?
Had at 3 pm, about 21 mg is still in you at an 11 pm bedtime. That should not affect most people’s sleep.
Your whole day, every drink, in the free CaffeineIQ check. The iPhone app is coming soon.
Sizes
| Size | Volume | Caffeine | mg per fl oz |
|---|---|---|---|
| Tall | 12 fl oz (355 ml) | 45 mg | 3.8 |
| Grande shown above | 16 fl oz (473 ml) | 60 mg | 3.8 |
| Venti | 24 fl oz (710 ml) | 90 mg | 3.8 |
Source: starbucks.com · checked 10 Nov 2026
Latest time to drink it
For an 11 pm bedtime, most people should finish a Grande (16 fl oz) Starbucks Iced Cream Chai by about 9:20 pm. The table works it out for other bedtimes and for how sensitive you are: it is the latest time to start one so that the caffeine left stays under the line all night.
| Bedtime | Very sensitive under 25 mg | Average under 50 mg | Not very sensitive under 100 mg |
|---|---|---|---|
| 9 pm | 2:10 pm | 7:20 pm | Any time |
| 10 pm | 3:10 pm | 8:20 pm | Any time |
| 11 pm | 4:10 pm | 9:20 pm | Any time |
| Midnight | 5:10 pm | 10:20 pm | Any time |
| 1 am | 6:10 pm | 11:20 pm | Any time |
For a Grande (16 fl oz) Starbucks Iced Cream Chai, average clearance (half-life 5 h), 8 hours of sleep. "Any time" means even one at bedtime stays under the line.
How long it lasts
The caffeine from a Grande (16 fl oz) Starbucks Iced Cream Chai peaks in your blood about 75 minutes after you start it, at roughly 51 mg. Half of it is gone in about 5 hours for an average adult; that ranges from roughly 3 to 7 hours, and longer in pregnancy or with some medicines.
| Time after | 3 hours | 6 hours | 9 hours | 12 hours |
|---|---|---|---|---|
| Still in you | 42 mg | 28 mg | 18 mg | 12 mg |
So one had at 3 pm leaves about 21 mg at 11 pm. How long caffeine lasts explains the curve.
How it compares
Starbucks Iced Cream Chai is stronger than 16% of the 90 coffee-shop drinks we track, by caffeine per serving.
Per fluid ounce (3.8 mg) it is stronger than 15% of them.
To reach 400 mg in a day you would need about 6½ of these.
Less caffeine
- Starbucks Caramel Brulée Chai 55 mg, Grande
- Starbucks Chai Latte 55 mg, Grande hot
- Starbucks Iced Cream Matcha 55 mg, Grande
More caffeine
- Starbucks Caramel Protein Matcha 65 mg, Grande
- Starbucks Matcha Crème Frappuccino 65 mg, Grande
- Starbucks Matcha Latte 65 mg, Grande
Same caffeine: Starbucks Dubai Chocolate Matcha, Starbucks Gingerbread Chai.
FAQ
Is Starbucks Iced Cream Chai high in caffeine?
It is moderate. A Grande (16 fl oz) Starbucks Iced Cream Chai has 60 mg, which is 63% of the 95 mg in an 8 fl oz cup of brewed coffee.
How much caffeine is in a Tall Starbucks Iced Cream Chai?
A Tall (12 fl oz) Starbucks Iced Cream Chai has 45 mg of caffeine, 15 mg less than a Grande (16 fl oz) Starbucks Iced Cream Chai.
How much caffeine is in a Venti Starbucks Iced Cream Chai?
A Venti (24 fl oz) Starbucks Iced Cream Chai has 90 mg of caffeine, 30 mg more than a Grande (16 fl oz) Starbucks Iced Cream Chai.
Can I drink Starbucks Iced Cream Chai at night?
Earlier is better. Had at 7 pm, it leaves about 37 mg in an average adult at an 11 pm bedtime. The latest time for an 11 pm bedtime is about 9:20 pm.
How long does the caffeine in Starbucks Iced Cream Chai last?
It peaks about 75 minutes after you start it. Of the 60 mg, about 28 mg is still in you 6 hours later and 12 mg after 12 hours, for an average adult with a 5-hour half-life.
Does Starbucks Iced Cream Chai have more caffeine than Red Bull?
No. A Grande (16 fl oz) Starbucks Iced Cream Chai has 60 mg; an 8.4 fl oz can of Red Bull has 80 mg.
Method and limits
The caffeine figure comes from starbucks.com; recipes, brewing and batches vary, so a real serving can differ. The curves use a standard one-compartment model with an average 5-hour half-life and a sleep-friendly line of 50 mg; your own body may clear caffeine faster or slower. How it works has the details.
These are estimates for information, not medical advice.
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