Caffeine vs WaterCaffeine chart
Matcha vs Coffee Caffeine: Which Has More, and Does L-Theanine Change Anything?
Matcha vs coffee caffeine, cup for cup: matcha has about 70 mg, drip coffee 95 mg. Chain matcha lattes compared, plus what the L-theanine research really shows.
The short answer
- An 8 oz (240 ml) cup of matcha has about 70 mg of caffeine; an 8 oz drip coffee about 95 mg. Coffee wins, but not by much.
- Matcha beats a single espresso (63 mg) and has about two and a half times the caffeine of regular green tea (28 mg).
- Matcha lattes vary widely: Starbucks Grande 65 mg, Costa Medium 99 mg, Dunkin' Medium 120 mg, Pret 28 mg.
- Matcha also contains L-theanine. Studies of L-theanine plus caffeine show small improvements in attention, but they used purified doses, not matcha drinks.
Matcha vs coffee caffeine is closer than most people think. A standard cup of matcha has about 70 mg of caffeine against about 95 mg for drip coffee, so matcha is a step down, not a different category. Where the gap gets big is at coffee shops: a Grande brewed coffee can have 300 mg or more, while most matcha lattes stay under 100 mg.
Below are the numbers side by side, using the drink values in our app, then an honest look at what L-theanine does and doesn't do.
How much caffeine is in matcha?
A typical 8 oz cup of matcha has about 70 mg. The real number depends mostly on how much powder goes in: a heaped scoop and a thin whisk are different drinks. Because you drink the whole ground leaf rather than an infusion, matcha delivers far more caffeine than green tea brewed from the same plant. Matcha plants are also shaded before harvest, which raises caffeine and L-theanine in the leaf.
| Drink | Size | Caffeine |
|---|---|---|
| Matcha (whisked with water) | 8 oz / 240 ml | 70 mg |
| Matcha latte (generic) | 12 oz / 350 ml | 80 mg |
| Green tea, brewed | 8 oz / 240 ml | 28 mg |
| Black tea, brewed | 8 oz / 240 ml | 47 mg |
| Espresso, single | 1 oz / 30 ml | 63 mg |
| Latte, single shot | 12 oz / 350 ml | 63 mg |
| Drip coffee | 8 oz / 240 ml | 95 mg |
| Drip coffee, large | 16 oz / 470 ml | 190 mg |
| Cold brew | 10 oz / 300 ml | 155 mg |
So matcha sits between tea and coffee: more than a black tea or a single-shot latte, less than a mug of filter coffee. For more on how espresso and filter compare, see espresso vs drip coffee caffeine, and for every kind of tea, how much caffeine is in tea.
Matcha latte caffeine at the big chains
| Matcha latte | Size | Caffeine |
|---|---|---|
| Pret Matcha Latte | 12 oz / 355 ml | 28 mg |
| Starbucks Matcha Latte, Tall | 12 oz / 355 ml | 45 mg |
| Starbucks Matcha Latte, Grande (hot or iced) | 16 oz / 473 ml | 65 mg |
| Starbucks Matcha Latte, Venti (hot or iced) | 20–24 oz / 591–710 ml | 85 mg |
| Dutch Bros Iced Matcha Latte, Medium | 24 oz / 710 ml | 90 mg |
| Costa Matcha Latte, Medium | 11.5 oz / 340 ml | 99 mg |
| Dunkin' Matcha Latte, Medium | 14 oz / 414 ml | 120 mg |
The spread is more than fourfold, from 28 mg at Pret to 120 mg at Dunkin'. Chains use different amounts of powder, and some use pre-sweetened matcha blends. Compared with the same chains' coffee, though, matcha is consistently lighter: a Starbucks Grande Matcha Latte has 65 mg, a Grande Caffè Latte 150 mg and a Grande Pike Place 310 mg. The full menus are in caffeine in Starbucks drinks and caffeine in Dunkin' coffee.
Matcha vs coffee caffeine: does it feel different?
Many matcha drinkers say it gives a calmer, steadier lift than coffee. There are two plausible reasons, and one of them is simply the dose.
1. Less caffeine. Swapping a 95 mg coffee for a 70 mg matcha, or a 310 mg Grande for a 65 mg matcha latte, is a real cut. Lower doses mean fewer jitters for most people, whatever the source. Caffeine is the same molecule whether it comes from a tea leaf or a coffee bean.
2. L-theanine. Tea leaves, and matcha in particular, contain L-theanine, an amino acid. Here the evidence is more modest than the marketing:
- A 2008 trial gave 27 people 50 mg of caffeine with and without 100 mg of L-theanine. The combination improved speed and accuracy on an attention-switching task and reduced distraction more than caffeine alone.
- A 2014 meta-analysis of 11 trials found moderate benefits of caffeine plus L-theanine on alertness and attention switching in the first two hours, but the effect tracked the caffeine dose more than the L-theanine dose.
- A 2025 meta-analysis of 50 trials found small-to-moderate benefits for L-theanine plus caffeine on some attention and mood measures, but noted wide uncertainty and called for studies using real tea drinks rather than isolated compounds.
In short, L-theanine plus caffeine looks mildly helpful for focus, but the trials used purified doses in capsules or drinks, not a cup of matcha. How much L-theanine your matcha contains varies with the grade and the scoop, so treat "calm energy" as plausible, not proven. If caffeine makes you anxious, dose matters most; see caffeine and anxiety.
Matcha, coffee and your sleep
Caffeine from matcha clears at the same rate as caffeine from coffee: a typical half-life of about 5.5 hours. The difference is only in how much you start with. Here's roughly how long each takes to fall below 50 mg, a sensible level to have left at bedtime:
| Drink | Caffeine | Hours to under 50 mg |
|---|---|---|
| Starbucks Matcha Latte, Grande | 65 mg | 2.5 h |
| Matcha, 8 oz | 70 mg | 3 h |
| Drip coffee, 8 oz | 95 mg | 5.5 h |
| Dunkin' Matcha Latte, Medium | 120 mg | 7 h |
| Starbucks Pike Place, Grande | 310 mg | 14.5 h |
An afternoon matcha is an easy way to keep a ritual without carrying much caffeine to bed. Check a specific drink and bedtime with the caffeine bedtime calculator, or read the full cutoff table in when to stop drinking coffee before bed. In Caffeine vs Water, matcha and coffee land on the same caffeine curve, so a 3 pm matcha after a morning latte shows up as one bedtime total.
Frequently asked questions
Matcha vs coffee caffeine: does matcha have more?
No. An 8 oz cup of matcha has about 70 mg of caffeine, and an 8 oz drip coffee about 95 mg. Matcha does have more than a single espresso (63 mg) and about two and a half times as much as brewed green tea (28 mg).
How much caffeine is in matcha?
About 70 mg in an 8 oz (240 ml) cup, depending on how much powder is used. Matcha lattes range from 28 mg (Pret) to 120 mg (Dunkin' Medium).
How much caffeine is in a Starbucks matcha latte?
A Tall has about 45 mg, a Grande 65 mg and a Venti 85 mg, hot or iced.
Is matcha better than coffee for anxiety?
Usually, mainly because a matcha has less caffeine than most coffees. L-theanine may add a small benefit to focus when taken with caffeine, but studies used purified doses, not matcha drinks.
Can I drink matcha in the afternoon?
For most people a single matcha by mid-afternoon is fine. At about 70 mg, it falls below 50 mg within roughly 3 hours for a typical adult. Slow metabolisers should allow longer.
Sources
- Owen GN, et al. The combined effects of L-theanine and caffeine on cognitive performance and mood. Nutr Neurosci, 2008.
- Camfield DA, et al. Acute effects of tea constituents L-theanine, caffeine, and epigallocatechin gallate on cognitive function and mood: a systematic review and meta-analysis. Nutr Rev, 2014.
- Payne ER, et al. Effects of tea (Camellia sinensis) or its bioactive compounds l-theanine or l-theanine plus caffeine on cognition, sleep, and mood in healthy participants: a systematic review and meta-analysis. Nutr Rev, 2025.
- Sławińska P, Raczkowska E. Matcha as a source of bioactive compounds: a review of health-promoting properties and potential applications. Nutrients, 2026.
- Brand nutrition pages and caffeine databases, as compiled for the Caffeine vs Water drink catalog (September 2026).
General wellness information, not medical advice. If you're pregnant, have a heart condition, or take medication that affects caffeine, check your limits with a doctor.