Starbucks
How much caffeine is in Starbucks Coffee Frappuccino?
Data checked against the source on 2026-10-03 by Oleksii Y.
One Grande, 16 fl oz of Starbucks Coffee Frappuccino has 95 mg of caffeine, according to Starbucks Coffee Company.
How Starbucks Coffee Frappuccino compares
- Strength: 20 mg per 100 ml.
- One Grande, 16 fl oz has as much caffeine as about one cup of brewed coffee, which has 94.8 mg per 8 fl oz cup.
How much will be left at bedtime?
1 × Grande, 16 fl oz of Starbucks Coffee Frappuccino
Left at 11:00 PM (8 h later), average metabolism
≈ 31 mg
Range 15–48 mg (fast to slow metabolism)
To be at 50 mg or less by bedtime, have 95 mg by 5:37 PM (average) or 2:51 PM (slow metabolism).
What sleep studies found near this dose
- Gardiner et al. 2025 (randomized trial): In 23 healthy young men, 100 mg taken 12, 8 or 4 hours before bed had no significant effect on measured or self-rated sleep.
- Gardiner et al. 2023 (meta-analysis): To avoid losing sleep time, the authors suggest a coffee (107 mg per 250 ml) at least 8.8 hours before bed.
Estimate from a simple model: half-life of 3, 5 or 8 hours, 50 mg bedtime target. How we calculate
Caffeine by size
| Serving | Caffeine |
|---|---|
| Grande, 16 fl oz | 95 mg |
| Tall, 12 fl oz | 65 mg |
| Venti, 24 fl oz | 125 mg |
How long does Starbucks Coffee Frappuccino stay in your system?
Our model halves caffeine every 5 hours for average metabolism, and every 3 or 8 hours for fast or slow metabolism. From one Grande, 16 fl oz of Starbucks Coffee Frappuccino (95 mg), about 48 mg is still in your body 5 hours later and about 24 mg after 10 hours. If you clear caffeine slowly (an 8-hour half-life), about 40 mg is left after 10 hours.
Estimated caffeine left at 11:00 PM from one Grande, 16 fl oz (95 mg), using a half-life of 5 hours for average metabolism and 3 to 8 hours for the range. How we calculate
| Had at | Left at bedtime (average) | Range |
|---|---|---|
| 8:00 AM (15 h before bed) | ≈ 12 mg | 3–26 mg |
| 12:00 PM (11 h before bed) | ≈ 21 mg | 7–37 mg |
| 3:00 PM (8 h before bed) | ≈ 31 mg | 15–48 mg |
| 6:00 PM (5 h before bed) | ≈ 48 mg | 30–62 mg |
How many fit in a day?
Reference amounts are for caffeine from all sources combined. Counted at the upper end of the stated amount, one serving at a time:
- Up to 400 mg a day for most healthy adults (FDA, EFSA): about 4 servings.
- Up to 200 mg at one time for healthy adults (EFSA): about 2 servings in one go.
- Up to 200 mg a day in pregnancy (EFSA, NHS): about 2 servings.
These are reference amounts for groups of people, not a personal limit. Some people feel jittery or sleep worse on much less. See the cutoff calculator for timing.
Good to know
A Grande Coffee Frappuccino lists less than a third of the caffeine in a Grande Pike Place Roast (315 mg).
Starbucks Coffee Frappuccino vs other Starbucks espresso drinks
- Starbucks Espresso: Starbucks Coffee Frappuccino has less caffeine than Starbucks Espresso per 100 ml (20 vs 341 mg). Starbucks Coffee Frappuccino: 95 mg per Grande, 16 fl oz; Starbucks Espresso: 150 mg per Doppio, 1.5 fl oz (2 shots).
- Starbucks Caffè Americano: Starbucks Coffee Frappuccino has less caffeine than Starbucks Caffè Americano per Grande, 16 fl oz: 95 mg vs 225 mg.
- Starbucks Caffè Latte: Starbucks Coffee Frappuccino has less caffeine than Starbucks Caffè Latte per Grande, 16 fl oz: 95 mg vs 150 mg.
Common questions
How much caffeine is in Starbucks Coffee Frappuccino?
Starbucks Coffee Company gives 95 mg of caffeine per Grande, 16 fl oz. Other sizes are in the table on this page.
How many Starbucks Coffee Frappuccino servings can I have in a day?
The FDA and EFSA cite up to 400 mg of caffeine a day, from all sources combined, for most healthy adults. At 95 mg per Grande, 16 fl oz, that is about 4 servings if Starbucks Coffee Frappuccino is your only source. In pregnancy the reference is 200 mg a day.
How late can I drink Starbucks Coffee Frappuccino?
With an 11:00 PM bedtime, our model suggests having one serving by about 5:37 PM for average metabolism, or 2:51 PM if you clear caffeine slowly. This is an estimate, not a rule.
Does Starbucks Coffee Frappuccino have more caffeine than Starbucks Espresso?
Starbucks Coffee Frappuccino has less caffeine than Starbucks Espresso per 100 ml (20 vs 341 mg). Starbucks Coffee Frappuccino: 95 mg per Grande, 16 fl oz; Starbucks Espresso: 150 mg per Doppio, 1.5 fl oz (2 shots).
How long does Starbucks Coffee Frappuccino stay in your system?
Of the 95 mg in one Grande, 16 fl oz, roughly 48 mg remains after 5 hours and 24 mg after 10 hours with our average 5-hour half-life. From fast to slow metabolism, 10 hours later it is between 9 and 40 mg.
Where the number comes from
- Coffee Frappuccino® Blended Beverage. Starbucks Coffee Company. Nutrition "Caffeine" field for each size (Tall 65, Grande 95, Venti 125 mg); page data from /apiproxy/v1/ordering/483/iced. Accessed 2026-10-02. Source ↗
- Pike Place Roast (brewed coffee). Starbucks Coffee Company. Nutrition "Caffeine" field for each size (Short 155, Tall 235, Grande 315, Venti 390 mg; "Caffeine Range" maximum 195, 290, 390, 490 mg; footnote "** Caffeine is an approximate value."); page data from /apiproxy/v1/ordering/480/hot. Accessed 2026-10-02. Source ↗
Recipes and labels change. If a number here no longer matches the label, the label wins.
General information, not medical advice
If you feel unwell after caffeine — for example chest pain, a fast or irregular heartbeat that does not settle, fainting, confusion or trouble breathing — get urgent medical help. If you are pregnant or breastfeeding, under 18, take medication, or have a heart, liver or anxiety condition, high blood pressure or a sleep disorder, ask a doctor or pharmacist what amount is right for you.
Sources
- U.S. Food and Drug Administration (2024). Spilling the Beans: How Much Caffeine is Too Much? FDA Consumer Updates. fda.gov ↗
- European Food Safety Authority. Caffeine | EFSA. EFSA topic page (summary of the 2015 Scientific Opinion on the safety of caffeine). efsa.europa.eu ↗
- NHS. Foods to avoid in pregnancy. NHS. nhs.uk ↗
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