A typical double shot of espresso usually contains around 120–160 mg of caffeine, with many tests and guides putting the average near 125–150 mg for 2 ounces (about 60 ml).

Quick Scoop ☕

Here’s the fast answer to how much caffeine in a double shot of espresso :

  • Most cafés: about 120–160 mg of caffeine in a standard double shot.
  • Many lab and cafe measurements cluster around 125–150 mg.
  • Big chains like Starbucks often sit near 150 mg for two shots.

So if you order a regular double, planning on roughly 130–150 mg is a realistic, everyday estimate.

Why the Numbers Vary

Different sources give slightly different ranges, and that’s not a mistake—espresso is surprisingly variable. Key factors include:

  • Bean type
    • Arabica usually has less caffeine than Robusta, so blends with more Robusta can push a double shot closer to the upper end (up toward ~180–200 mg in some cases).
  • Roast level
    • Lighter roasts tend to retain a bit more caffeine by weight than darker roasts, so a lightly roasted double can edge higher in caffeine.
  • Dose and yield
    • A “double shot” can vary from café to café: some pull 14 g of coffee, others 18–20 g, and the final liquid volume can range from about 40–80 ml.
* A study cited in coffee articles found double espressos ranging roughly **133–185 mg** , averaging around **156 mg** , depending on shot size and café.
  • Grind, tamp, machine
    • Finer grind, higher pressure, and longer contact time can extract more caffeine into the cup.

How It Compares to Other Drinks

Here’s roughly where a double espresso sits next to other common caffeinated drinks.

[5][9] [7][5][9] [7][5] [5][7]
Beverage Typical serving Approx. caffeine
Double shot espresso 2 oz (60 ml) About 120–160 mg (often ~125–150 mg)
Single shot espresso 1 oz (30 ml) About 60–80 mg (often ~63–65 mg)
8 oz drip coffee 240 ml Roughly 80–120 mg, sometimes a bit higher
12 oz latte (2 shots) 355 ml About 120–160 mg (caffeine mostly from espresso shots)
Even though a double espresso can have similar or slightly less caffeine than a mug of drip coffee, it delivers it in a **much** smaller, more concentrated volume, so the “hit” often feels faster.

“Latest news” and forum-style chatter

Recent coffee blog posts and guides (2024–2026) all circle around the same basic answer: a double shot typically sits in the 120–160 mg band, with many cafes landing near ~130–150 mg.

Common forum-style opinions you’ll see echoed in coffee blogs:

  1. Some home baristas report lower numbers (around 120 mg) when using smaller doses and darker roasts.
  2. Specialty cafés often pull slightly larger, well-extracted doubles that nudge closer to 150+ mg.
  3. Chain cafés like Starbucks frequently get quoted around 150 mg for 2 shots, which matches their own published nutrition info mentioned in coffee articles.

You’ll also see a recurring reminder: for most healthy adults, staying under about 400 mg caffeine per day is commonly referenced as a sensible limit, which means two double shots in a day is already a big chunk of that budget.

Practical takeaway

If you just want a safe working number for how much caffeine in a double shot of espresso :

  • Plan on about 130–150 mg caffeine for a typical modern café double.
  • If you’re sensitive to caffeine, treat it as potentially up to 160+ mg , especially with strong specialty shots or robusta-heavy blends.

Information gathered from public forums or data available on the internet and portrayed here.