A Starbucks grande matcha latte has roughly 76–78 mg of caffeine; Starbucks nutrition shows ~76 mg for hot and ~78 mg for iced.
Want the caffeine hit of matcha without guessing? This guide gives clear numbers for a Starbucks grande matcha latte, explains why the count lands in the mid-70s milligrams, and shows how size, ice, and add-ons shift that number. You’ll also see how it stacks up against coffee and green tea, plus simple ordering tips to keep your caffeine in the range you want.
Caffeine In A Grande Matcha Latte — By Size And Style
Starbucks lists caffeine values in product nutrition. The most recent regional nutrition sheet for Ireland (which follows the same scoop system used in many markets) shows a grande matcha latte at ~76 mg when hot and ~78 mg when iced. Tall and venti sizes scale with the number of matcha scoops. You can scan the table below to see the pattern by size and style.
| Drink & Size | Caffeine (mg) | Notes |
|---|---|---|
| Matcha Latte (Hot), Tall | ~52.5 | Smaller cup, fewer scoops |
| Matcha Latte (Hot), Grande | ~76.2 | “Grande” default with 2% milk |
| Matcha Latte (Hot), Venti | ~102.4 | Larger cup, more scoops |
| Iced Matcha Latte, Tall | ~51.4 | Ice lowers liquid volume but scoops scale |
| Iced Matcha Latte, Grande | ~77.7 | Same scoop count as hot grande |
| Iced Matcha Latte, Venti | ~103.8 | One extra scoop vs. grande |
| Chai Tea Latte, Grande | ~52.4 | For quick tea-to-tea comparison |
Source for the values above: Starbucks’ Spring FY25 Ireland beverage nutrition sheet, which lists caffeine by drink, size, and milk choice (see the “Matcha Green Tea Latte” and “Iced Matcha Green Tea Latte” rows; last column shows caffeine in mg). You can view the document here: Starbucks beverage nutritionals (PDF).
How Many MG Of Caffeine In A Grande Matcha Latte? Details And Context
Here’s the direct answer in plain terms: the figure for a grande sits around the mid-70s mg mark. Hot usually lands near 76 mg; iced reads near 78 mg in the nutrition sheet. This tiny spread stems from the way Starbucks formats hot and iced recipes. The scoop count stays the same across both, so real-world difference is small.
That mid-70s mg level places matcha below a standard Starbucks brewed coffee by quite a margin, and above many non-tea refreshers. It’s enough for a gentle lift without the buzz that some feel from stronger coffee drinks.
Why A Grande Matcha Latte Lands Around ~76–78 Mg
Starbucks Uses A Matcha Blend With Sugar
Starbucks matcha is a sweetened blend. The caffeine lives in the tea powder; milk type doesn’t change it. Swapping 2% for oat or almond affects calories and fat, not the caffeine line.
Scoops Drive The Caffeine
The chain portions matcha by scoops: fewer for tall, more for venti. Grande sits in the middle, which lines up with the ~76–78 mg result. Iced venti typically adds a scoop compared with grande, which explains the jump beyond ~100 mg for that size.
Hot Versus Iced Makes Only A Small Difference
Hot and iced grandes use the same number of scoops. The nutrition file shows a ~1–2 mg spread, which in practice is negligible.
How It Compares With Coffee And Plain Green Tea
A brewed 16-oz Starbucks coffee can push well above 200 mg. By contrast, the grande matcha latte sits near 76–78 mg. Plain green tea varies too, yet many cups fall under the matcha latte’s mid-70s range because matcha involves consuming the ground leaf, not just an infusion.
For daily intake guardrails, the U.S. Food and Drug Administration points to a limit of about 400 mg a day for healthy adults. You can read the agency’s consumer update here: FDA caffeine guidance. A single grande matcha latte places you at roughly one-fifth of that daily level.
Ordering Tips To Hit Your Target
Keep A Grande If You Want A Mid-Range Boost
Stick with a grande hot or iced for a steady mid-70s mg dose. That suits many drinkers who want focus without a coffee-level jolt.
Go Tall For A Lighter Lift
Tall sizes hover near ~51–53 mg. That’s a gentle caffeine range with the same flavor profile.
Pick Venti When You Need More
Venti hot or iced climbs to ~102–104 mg. That’s still below many brewed coffees, yet roughly 30 mg higher than a grande.
Mind Extra Scoops
Asking for an extra scoop raises caffeine. One extra scoop moves you closer to venti-level numbers in the same cup size.
Milk Choices Don’t Change Caffeine
Oat, almond, soy, coconut, or whole milk change texture and nutrition, not caffeine content. The matcha powder dictates the mg line.
Practical Use Cases And Timing
Morning Focus
The mid-70s mg dose pairs well with morning tasks. It’s enough to sharpen attention yet mild compared with strong coffee drinks.
Afternoon Pick-Me-Up
If you’re caffeine-sensitive late in the day, choose a tall or ask for light ice with the same scoop count. Leave a cushion of at least six hours before sleep if you notice lingering alertness.
Workout Warm-Up
Some drinkers like a grande 30–60 minutes before a workout for steady energy. If you want more, venti shifts you near ~100 mg without crossing coffee territory.
What Changes The Number (And What Doesn’t)
Several factors can nudge the caffeine count. The list below spells out the levers that matter and the ones that don’t.
Levers That Matter
- Size: Tall < Grande < Venti, due to scoop count.
- Extra scoops: Each extra scoop adds caffeine.
- Protein matcha line: These newer menu items still rely on matcha powder, so caffeine sits in a similar band (nutrition blurbs list caffeine where available).
Levers That Don’t
- Milk type: Dairy or plant-based milks don’t alter caffeine.
- Sweetener swaps: Simple syrup, sugar-free vanilla, or no syrup leaves caffeine unchanged.
- Ice level: Iced recipes keep the scoop count, so caffeine stays close to hot.
Safe Intake And Sensitivity
A grande matcha latte keeps you near the 75 mg mark, which leaves room for a second tea or a light coffee while staying under the 400 mg daily limit cited by the FDA. Everyone metabolizes caffeine at a different pace. If you notice jitters, sleep issues, or a racing heartbeat, trim portion size or space your cups. Teens and kids should avoid high-caffeine drinks; pregnant or nursing people should speak with their clinician about personal limits and timing.
Customizations And Their Caffeine Impact
| Customization | Expected Impact | Why It Happens |
|---|---|---|
| One Extra Matcha Scoop | Raises caffeine toward venti levels | More powder = more caffeine |
| Fewer Scoops | Lowers caffeine below the listed size | Less powder per drink |
| Switch To Tall | Drops to ~51–53 mg | One fewer scoop vs. grande |
| Switch To Venti | Jumps to ~102–104 mg | One more scoop vs. grande |
| Milk Change (Oat/Almond/Soy/Coconut) | No change | Caffeine lives in matcha powder |
| Syrup Change (Classic/Sugar-Free/None) | No change | Sweetener doesn’t add caffeine |
| Light Ice Or Extra Ice | Minimal change | Scoops stay constant by size |
Quick Comparison Snapshot
Matcha’s lift lands in the middle ground. One grande matcha latte sits near ~76–78 mg. A grande brewed coffee can exceed 200 mg. A grande chai sits near ~52 mg. If you like a calm, steady rise in alertness with gentle green tea flavor, the grande matcha latte is a sweet spot.
How To Order With Confidence
- Decide your target: Mid-70s mg? Order a grande. Lower? Choose a tall. More? Choose a venti.
- Lock in the scoop plan: Ask to keep standard scoops or request one extra or one fewer to tune the dose.
- Pick your milk for taste: Milk changes texture and calories, not caffeine.
- Set your timing: Leave a buffer before bedtime if you’re sensitive.
Sources And Data Notes
Caffeine numbers for Starbucks drinks come from the chain’s nutrition materials. Because U.S. web pages load nutrition via scripts, a clean static reference many readers can open is the Ireland nutrition PDF linked above. You’ll find “Matcha Green Tea Latte” (hot) and “Iced Matcha Green Tea Latte” entries with ~76.2 mg and ~77.7 mg in the caffeine column for the grande size. For daily limits, see the FDA consumer update that cites 400 mg per day for healthy adults.
Final Take
If you just wanted the number, here it is again: a Starbucks grande matcha latte lands near 76–78 mg of caffeine. That figure fits a balanced lane—noticeable lift, smooth feel, and room to enjoy other tea or coffee later in the day while staying under common daily limits.
Asked another way: how many mg of caffeine in a grande matcha latte? The practical answer stays the same—mid-70s mg. If you need to show the value to a friend, send the Starbucks nutrition link above. And if a barista tweaks scoops per your request, your cup will move up or down in a predictable way.
When you place your next order and wonder, “how many mg of caffeine in a grande matcha latte,” remember this page: grande sits near ~76–78 mg, tall near ~52 mg, venti near ~102–104 mg.