Starbucks
How much caffeine is in Starbucks Matcha Latte?
Data checked against the source on 2026-10-03 by Oleksii Y.
One Grande, 16 fl oz of Starbucks Matcha Latte has 65 mg of caffeine, according to Starbucks Coffee Company.
How Starbucks Matcha Latte compares
- Strength: 14 mg per 100 ml.
- One Grande, 16 fl oz has as much caffeine as about three quarters of a 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 Matcha Latte
Left at 11:00 PM (8 h later), average metabolism
≈ 21 mg
Range 10–33 mg (fast to slow metabolism)
To be at 50 mg or less by bedtime, have 65 mg by 8:21 PM (average) or 7:13 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 | 65 mg |
| Short, 8 fl oz | 20 mg |
| Tall, 12 fl oz | 45 mg |
| Venti, 20 fl oz | 85 mg |
How long does Starbucks Matcha Latte 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 Matcha Latte (65 mg), about 33 mg is still in your body 5 hours later and about 16 mg after 10 hours. If you clear caffeine slowly (an 8-hour half-life), about 27 mg is left after 10 hours.
Estimated caffeine left at 11:00 PM from one Grande, 16 fl oz (65 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) | ≈ 8 mg | 2–18 mg |
| 12:00 PM (11 h before bed) | ≈ 14 mg | 5–25 mg |
| 3:00 PM (8 h before bed) | ≈ 21 mg | 10–33 mg |
| 6:00 PM (5 h before bed) | ≈ 33 mg | 20–42 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 6 servings.
- Up to 200 mg at one time for healthy adults (EFSA): about 3 servings in one go.
- Up to 200 mg a day in pregnancy (EFSA, NHS): about 3 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 Starbucks Matcha Latte lists less caffeine than a Grande Caffè Latte (150 mg).
Starbucks Matcha Latte vs other Starbucks tea latte drinks
- Starbucks Chai Latte: Starbucks Matcha Latte has more caffeine than Starbucks Chai Latte per Grande, 16 fl oz: 65 mg vs 55 mg.
Common questions
How much caffeine is in Starbucks Matcha Latte?
Starbucks Coffee Company gives 65 mg of caffeine per Grande, 16 fl oz. Other sizes are in the table on this page.
How many Starbucks Matcha Latte 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 65 mg per Grande, 16 fl oz, that is about 6 servings if Starbucks Matcha Latte is your only source. In pregnancy the reference is 200 mg a day.
How late can I drink Starbucks Matcha Latte?
With an 11:00 PM bedtime, our model suggests having one serving by about 8:21 PM for average metabolism, or 7:13 PM if you clear caffeine slowly. This is an estimate, not a rule.
Does Starbucks Matcha Latte have more caffeine than Starbucks Chai Latte?
Starbucks Matcha Latte has more caffeine than Starbucks Chai Latte per Grande, 16 fl oz: 65 mg vs 55 mg.
How long does Starbucks Matcha Latte stay in your system?
Of the 65 mg in one Grande, 16 fl oz, roughly 33 mg remains after 5 hours and 16 mg after 10 hours with our average 5-hour half-life. From fast to slow metabolism, 10 hours later it is between 6 and 27 mg.
Where the number comes from
- Matcha Latte. Starbucks Coffee Company. Nutrition "Caffeine" field for each size (Short 20, Tall 45, Grande 65, Venti 85 mg); page data from /apiproxy/v1/ordering/468/hot. Accessed 2026-10-02. Source ↗
- Caffè Latte. Starbucks Coffee Company. Nutrition "Caffeine" field for each size (Tall 75, Grande 150, Venti 150 mg); page data from /apiproxy/v1/ordering/407/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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