In most UK bars, a single shot is typically 25 ml, although some establishments are licensed to serve 35 ml single measures instead. Because of this, the exact amount can vary depending on the bar, but 25 ml is generally considered the standard single shot measure across much of the UK.
A double shot is usually either 50 ml (when the single measure is 25 ml) or 70 ml (when the single measure is 35 ml). Most bars clearly display their serving measures, so customers can easily see what size is being used.
One thing that often surprises visitors is that UK alcohol measures are more strictly regulated than in some other countries. Spirits such as vodka, gin, rum, and whisky are commonly served in legally defined quantities to ensure consistency and transparency for customers.
For example:
- Single shot (standard measure): 25 ml
- Double shot: 50 ml
- Alternative single measure in some bars: 35 ml
- Alternative double measure: 70 ml
From what I've observed while traveling and dining in the UK, most pubs and bars use optic dispensers or measured pouring systems, which helps ensure that every serving contains the advertised amount. This is especially useful for customers who want to keep track of their alcohol consumption or compare drink prices accurately.
It's also worth noting that cocktail recipes may use different measurements depending on the venue. While a spirit served neat is usually based on the bar's standard shot size, cocktails are often prepared according to specific recipes that may combine multiple measures.
Overall, if someone asks how many milliliters are in a single shot at a UK bar, the simplest answer is 25 ml in most cases, though some venues legally use 35 ml as their standard single measure. Checking the bar's displayed serving information is the easiest way to know the exact amount being served.
Also Read: What Alcohol Percentage in Drinks Whiskey, Beer, Wine or Vodka?
Ishaanvi Reddy is a trained chef and food writer with over 4 years of professional experience in culinary arts and food content. She holds a Diploma in Culinary Arts from the Institute of Hotel Management (IHM), Hyderabad — a qualification that gives her food writing a level of technical accuracy that distinguishes it from content written without kitchen experience. Her content covers recipes, cooking techniques, ingredient guides, food culture, nutrition basics, and restaurant trends across India. Her work has appeared on platforms including Slurrp, Herzindagi Food, and Eat This Not That India, where she writes for home cooks and food enthusiasts who want content that is tested, practical, and rooted in real culinary knowledge — not just adapted from other sources. With hands-on kitchen experience spanning South Indian, North Indian, and Continental cuisines, Ishaanvi brings a cross-regional perspective to her food writing. She has published 150+ food articles and recipes, covering everything from everyday meal planning to deep dives into the science of cooking and the cultural history of Indian food. Across all her work, every recipe is kitchen-tested, every technique is chef-verified, and every recommendation comes from direct culinary experience — not guesswork.
.jpeg&w=1080&q=75)