Caffeine in drinks
How much caffeine is in Caffè latte?
Data checked against the source on 2026-10-03 by Oleksii Y.
One 8 fl oz cup (240 g) of Caffè latte has 86.4 mg of caffeine, according to USDA Agricultural Research Service, FoodData Central (FNDDS).
How Caffè latte compares
- Strength: 37 mg per 100 ml.
- One 8 fl oz cup (240 g) has as much caffeine as about one cup of brewed coffee, which has 94.8 mg per 8 fl oz cup.
- Of the 13 other coffee drinks in our coffee chart, 3 have more caffeine per serving and 9 have less.
How much will be left at bedtime?
1 × 8 fl oz cup (240 g) of Caffè latte
Left at 11:00 PM (8 h later), average metabolism
≈ 28 mg
Range 14–43 mg (fast to slow metabolism)
To be at 50 mg or less by bedtime, have 86 mg by 6:20 PM (average) or 3:59 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 |
|---|---|
| 8 fl oz cup (240 g) | 86.4 mg |
| Small (360 g) | 129.6 mg |
How long does Caffè 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 8 fl oz cup (240 g) of Caffè latte (86 mg), about 43 mg is still in your body 5 hours later and about 22 mg after 10 hours. If you clear caffeine slowly (an 8-hour half-life), about 36 mg is left after 10 hours.
Estimated caffeine left at 11:00 PM from one 8 fl oz cup (240 g) (86 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) | ≈ 11 mg | 3–23 mg |
| 12:00 PM (11 h before bed) | ≈ 19 mg | 7–33 mg |
| 3:00 PM (8 h before bed) | ≈ 28 mg | 14–43 mg |
| 6:00 PM (5 h before bed) | ≈ 43 mg | 27–56 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
Many coffee houses make lattes and cappuccinos by diluting a single or double shot of espresso, and a lab study of 20 high-street espressos found a 6-fold difference in caffeine between them.
How the serving amount was worked out: USDA lists 36 mg per 100 g, from a recipe of 62 g of espresso and 305 g of 2% milk; 240 g × 0.36 = 86.4 mg; 360 g × 0.36 = 129.6 mg.
Caffè latte vs other espresso drink drinks
- Cappuccino: Caffè latte has the same amount of caffeine as cappuccino per 8 fl oz cup (240 g): 86.4 mg vs 86.4 mg.
- Caffè mocha: Caffè latte has about the same amount of caffeine as caffè mocha per 8 fl oz cup (240 g): 86.4 mg vs 81.8 mg.
- Espresso macchiato: Caffè latte has less caffeine than espresso macchiato per 100 ml (37 vs 144 mg). Caffè latte: 86.4 mg per 8 fl oz cup (240 g); Espresso macchiato: 85.2 mg per 2 fl oz espresso cup (60 g). Per serving the order evens out, because the servings differ in size.
Common questions
How much caffeine is in Caffè latte?
USDA Agricultural Research Service, FoodData Central (FNDDS) gives 86.4 mg of caffeine per 8 fl oz cup (240 g). Other sizes are in the table on this page.
How many Caffè 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 86.4 mg per 8 fl oz cup (240 g), that is about 4 servings if Caffè latte is your only source. In pregnancy the reference is 200 mg a day.
How late can I drink Caffè latte?
With an 11:00 PM bedtime, our model suggests having one serving by about 6:20 PM for average metabolism, or 3:59 PM if you clear caffeine slowly. This is an estimate, not a rule.
How long does Caffè latte stay in your system?
Of the 86 mg in one 8 fl oz cup (240 g), roughly 43 mg remains after 5 hours and 22 mg after 10 hours with our average 5-hour half-life. From fast to slow metabolism, 10 hours later it is between 9 and 36 mg.
Where the number comes from
- Coffee, Latte. USDA Agricultural Research Service, FoodData Central (FNDDS). FDC ID 2710386, nutrient "Caffeine" (262): portions "1 cup (8 fl oz)" = 240 g and "1 small" = 360 g. Accessed 2026-10-02. Source ↗
- Espresso coffees, caffeine and chlorogenic acid intake: potential health implications. Food & Function. PMID 22130653, abstract. 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, take medication or have a heart, liver or anxiety condition, 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 ↗
An app for better sleep is on the way
We’re working on a mobile app to help you sleep better. It isn’t out yet. Leave your email and we’ll let you know when it launches.