The factor is 8, in every system
A pint is defined as one eighth of a gallon, so the conversion is the same whether you mean US liquid, US dry or UK Imperial. Multiply gallons by 8; divide pints by 8 to go back.
Same count, different size — US vs UK
The number of pints is identical, but each Imperial pint holds about 20% more liquid than a US one. That difference matters for recipes and beer, not for the pint count.
A UK Imperial pint (568 mL) is about 95 mL larger than a US pint (473 mL) — a fifth more liquid for the same word.
Common gallon-to-pint values
| Gallons | Pints | US total | UK total |
|---|---|---|---|
| ½ gal | 4 pt | 1.89 L | 2.27 L |
| 1 gal | 8 pt | 3.79 L | 4.55 L |
| 2 gal | 16 pt | 7.57 L | 9.09 L |
| 5 gal | 40 pt | 18.93 L | 22.73 L |
The pint count is the same across both columns; only the litre totals differ, because a US gallon is 3.785 L and a UK gallon is 4.546 L.
Where the two systems came apart
- US kept the old wine gallon — 231 cubic inches, fixed at 3.785 L, which sets the 473 mL pint (16 US fl oz).
- UK redefined in 1824 — the Imperial gallon became 4.546 L, giving the 568 mL pint (20 Imperial fl oz).
- Beer still runs on it — a UK pub pint is a legally protected 568 mL, so a "pint" of beer is bigger in Britain than in the US.
Common questions
How many pints are in a gallon?
Exactly 8, in both the US and the UK Imperial system. The ratio never changes, so to convert gallons to pints you just multiply by 8. Two gallons is 16 pints.
Are a US pint and a UK pint the same size?
No. A US liquid pint is about 473 mL, while a UK Imperial pint is about 568 mL, roughly 20 percent larger. Both are still one eighth of their own gallon, but the gallons themselves differ.
Is the US dry gallon different?
Yes. The US dry gallon is about 4.405 litres, used historically for grains and produce, versus 3.785 litres for the liquid gallon. The gallon-to-pint ratio is still 8, so do not mix dry and liquid units in one conversion.
