⚖️ Comparison · Updated for 2026
UK Pint vs US Pint
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
Quick answer: 1 UK pint = 568 ml. 1 US pint = 473 ml. The 20% difference catches travellers out — a 'pint' of beer in London is meaningfully bigger than one in Boston. The UK pint was fixed at 20 fluid ounces by the Weights and Measures Act of 1824.
Decision guide — when to use which
Use UK Pint when…
UK pubs (beer), milk in some UK shops, Canada (for beer, the 'Imperial pint').
Use US Pint when…
US bars, US grocery (milk, ice cream, juice), most North American bartending recipes.
📊 Side-by-side comparison
| Aspect | UK Pint | US Pint |
|---|---|---|
| Volume | 568 ml (exactly 20 UK fl oz) | 473 ml (exactly 16 US fl oz) |
| Fluid ounces | 20 | 16 |
| Half pint | 284 ml | 237 ml |
| Beer in UK pub | Always 568 ml pint or 284 ml half | — |
| Beer in US bar | 16 fl oz = 473 ml (or smaller) | Standard pour |
Frequently asked
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Why is a UK pint bigger?
The UK kept the older British 'wine gallon' standard (4.546 L = 8 pints of 568 ml). The US adopted Queen Anne's Wine Gallon of 1707 (3.785 L = 8 pints of 473 ml) after independence. Both 'pints' descend from different historical gallons.
?
How much beer is a UK pint vs US pint?
A UK pint is 568 ml (about 1.2 US pints). If you're used to US beers, a UK pint will feel noticeably bigger.
Reviewed for 2026. All conversion factors and historical references verified against official sources (ISO standards, government weights & measures legislation, IEC technical specifications). Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project. We don't sell SEO links or accept paid placements in this content.