A typical single shot of espresso has about 63 mg of caffeine, usually in a range of roughly 47–65 mg per 1 oz (30 ml) shot.

Quick Scoop

  • Average per shot (1 oz / 30 ml): ~63 mg caffeine.
  • Common range: ~47–65 mg in most “standard” shots, though some measurements show 30–100+ mg depending on how it’s pulled.
  • Double shot: Usually around 120–130 mg (often quoted ~126 mg).
  • Compared to drip coffee: An 8 oz cup of drip coffee is often ~95 mg total, so per ounce espresso is more concentrated, but per cup you may get more total caffeine from drip coffee.

Why the Number Isn’t Exact

Several factors change how much caffeine actually ends up in your shot:

  • Grind size, dose, and tamp pressure (more coffee and finer grind usually mean more extraction).
  • Water temperature, pressure, and shot time (longer and higher-pressure extractions can pull more caffeine).
  • Bean type and roast level (robusta vs arabica, light vs dark) also shift the caffeine content.

One study even found espresso shots ranging from about 25 mg to over 200 mg depending on how and where they were made, showing just how variable barista style and equipment can be.

Today’s “Espresso Talk” Context

In recent years, many coffee blogs and barista schools have tried to clear up the myth that a single espresso has “way more caffeine” than a regular coffee. The current consensus is:

  • Espresso feels like a stronger hit because the caffeine is concentrated in a tiny, quickly consumed drink.
  • Your total caffeine for the day still depends more on how many shots or cups you have, not just that one intense sip.

TL;DR

For everyday purposes, you can safely think of one shot of espresso as ~60–65 mg of caffeine , and a double shot as ~120–130 mg , with real- world variance depending on the barista, beans, and machine.

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