Convert pints to gallons

One pint is 0.125 gallons, which is one eighth. To convert, you divide the number of pints by eight: gallons = pints ÷ 8. Eight pints make one gallon, four pints make half a gallon, and two pints make a quarter of a gallon.

The eight comes from the way both units are built. A gallon holds four quarts and a quart holds two pints, so eight pints fill a gallon. The US tables of measure give this ratio for American liquid measure and for British measure alike[1]. The step in the middle is covered by the pints to quarts converter.

A whole number of pints never needs more than three decimal places in gallons: 3 pints are 0.375 gallons and 5 pints are 0.625. Half pints add a fourth place, which is why the converter shows four. For the opposite direction, use the gallons to pints converter.

The pint is the measure a British pub pours its draught beer in. The imperial pint holds 568.26 milliliters and the US liquid pint 473.18 milliliters[1]. Its link to the gallon goes back a long way. Old apothecary prescriptions wrote the pint with the letter O, from the Latin octarius, meaning “an eighth”[2].

The gallon is eight pints of the same system. The US gallon holds 3.785 liters and the imperial gallon 4.546 liters[1]. To turn either one into liters, use the gallons to liters converter. For pints straight to liters, there is the pints to liters converter.

A decimal answer such as 2.375 gallons is easy to turn into two units. The part before the point gives the full gallons. The part after it, multiplied by eight, gives the pints left over: 0.375 × 8 = 3. So 19 pints are 2 gallons and 3 pints.

You can also skip the decimals. Divide the pints by eight and read the remainder: eight goes into 19 twice, with 3 pints left.

This form helps when you pour a liquid into smaller containers. A cask holding 9 gallons of beer contains 72 pints, so after 50 pints have been poured, 22 pints are left, which is 2 gallons and 6 pints.