Convert Pints to US Gallons

About converting Pints to US Gallons

Pints (pt) and US Gallons (gal (US)) are both units of volume, so converting between them is a single multiplication: multiply your Pints figure by 0.125. Ten Pints comes to 1.25 US Gallons, and a hundred works out at 12.5 US Gallons.

Rule of thumb: going from Pints to US Gallons divides, so the figure always shrinks — it takes about 8 Pints to make a single US Gallon. If your answer came out bigger, you have the conversion the wrong way round.

What is a Pint?

The pint is where the US-imperial split becomes most visible, because both countries still use the word every day. A US pint is 16 US fluid ounces; an imperial pint is 20 imperial fluid ounces, making the British pint the larger by about a fifth. So a pint of beer in London is meaningfully more beer than a pint in New York — the same word, a different drink, and no label anywhere warns you. The imperial pint is also one of the few imperial units still legally mandated in the UK, where draught beer and cider must be sold in pints or fractions of one.

What is an US Gallon?

The US gallon is defined as exactly 231 cubic inches, a figure inherited unchanged from the old English wine gallon. When Britain overhauled its measures in 1824 and adopted a new imperial gallon, the United States simply kept the wine gallon it already had — and that single decision is the root of the entire US-versus-imperial mess that still catches people out today. The US gallon is roughly a fifth smaller than the imperial one, which means American and British fuel-economy figures are not comparable even though both are quoted in miles per gallon.

To put both in perspective: a pint is the standard glass of beer in a British pub, while a typical American milk jug holds one US gallon.

The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the US Gallons to Pints converter, or browse all Volume converters.