How much caffeine is in Starbucks Caffè Americano?
A Grande (16 fl oz) Starbucks Caffè Americano has 225 mg of caffeine.
That's about 2 cups of brewed coffee, and 56% of the 400 mg a day the FDA cites for most healthy adults.
Source: starbucks.com · checked 10 Nov 2026
When did you have it?
Had at 3 pm, about 79 mg is still in you at an 11 pm bedtime. That might affect your 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 |
|---|---|---|---|
| Short | 8 fl oz (237 ml) | 75 mg | 9.4 |
| Tall | 12 fl oz (355 ml) | 150 mg | 13 |
| Grande shown above | 16 fl oz (473 ml) | 225 mg | 14 |
| Venti | 20 fl oz (591 ml) | 300 mg | 15 |
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 Caffè Americano by about 11:40 am. 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 | Too much for one evening | 9:40 am | 2:40 pm |
| 10 pm | 5:40 am | 10:40 am | 3:40 pm |
| 11 pm | 6:40 am | 11:40 am | 4:40 pm |
| Midnight | 7:40 am | 12:40 pm | 5:40 pm |
| 1 am | 8:40 am | 1:40 pm | 6:40 pm |
For a Grande (16 fl oz) Starbucks Caffè Americano, 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 Caffè Americano peaks in your blood about 75 minutes after you start it, at roughly 192 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 | 158 mg | 104 mg | 69 mg | 45 mg |
So one had at 3 pm leaves about 79 mg at 11 pm. How long caffeine lasts explains the curve.
How it compares
Starbucks Caffè Americano is stronger than 84% of the 90 coffee-shop drinks we track, by caffeine per serving.
Per fluid ounce (14 mg) it is stronger than 85% of them.
To reach 400 mg in a day you would need about 2 of these.
Less caffeine
- Starbucks Cold Brew 205 mg, Grande
- Starbucks Vanilla Protein Cream Cold Brew 205 mg, Grande
- Starbucks Flat White 195 mg, Grande
More caffeine
- Dutch Bros Cold Brew 226 mg, Medium iced
- Starbucks Cortado 230 mg, Short
- Starbucks Iced Brown Sugar Oatmilk Shaken Espresso 255 mg, Grande
Same caffeine: Starbucks Aerocano, Starbucks Iced Shaken Espresso.
FAQ
Is Starbucks Caffè Americano high in caffeine?
Yes, very. A Grande (16 fl oz) Starbucks Caffè Americano has 225 mg, which is 2.4 times an 8 fl oz cup of brewed coffee (95 mg).
How much caffeine is in a Short Starbucks Caffè Americano?
A Short (8 fl oz) Starbucks Caffè Americano has 75 mg of caffeine, 150 mg less than a Grande (16 fl oz) Starbucks Caffè Americano.
How much caffeine is in a Venti Starbucks Caffè Americano?
A Venti (20 fl oz) Starbucks Caffè Americano has 300 mg of caffeine, 75 mg more than a Grande (16 fl oz) Starbucks Caffè Americano.
Can I drink Starbucks Caffè Americano at night?
Not if you want to sleep well. Had at 7 pm, it leaves about 138 mg in an average adult at an 11 pm bedtime, above the 50 mg most people sleep fine with. The latest time for an 11 pm bedtime is about 11:40 am.
How long does the caffeine in Starbucks Caffè Americano last?
It peaks about 75 minutes after you start it. Of the 225 mg, about 104 mg is still in you 6 hours later and 45 mg after 12 hours, for an average adult with a 5-hour half-life.
Does Starbucks Caffè Americano have more caffeine than Red Bull?
Yes. A Grande (16 fl oz) Starbucks Caffè Americano has 225 mg; an 8.4 fl oz can of Red Bull has 80 mg.
Method and limits
The caffeine figure comes from starbucks.com and the other sources listed above; 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. If you are pregnant, ask your doctor; common guidance is under 200 mg a day.
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