Convert pints to liters

One US liquid pint is 0.4732 litres[1]. You multiply the number of pints by 0.473176473 and the answer comes out in litres.

That multiplier gives three values you meet across US volume measures. Two pints make 0.9464 litres and together form one quart. Four pints come to 1.8927 litres. Eight pints make up the US gallon, which holds 3.7854 litres.

The pint poured in a British pub is larger. An imperial pint holds 0.56826125 litres, the figure set by the British weights and measures act[2]. Two of those pints come to 1.1365 litres. Eight imperial pints are 4.5461 litres, a full imperial gallon. The third measure, the US dry pint, holds 0.5506 litres.

You pick the measure with the Pint type switch under the fields, and the multiplier changes with it. The result field gives litres to four decimal places.

The litre is a metric measure and holds the volume of a cube one decimetre, or ten centimetres, on a side[1]. It holds exactly one thousand millilitres, so every step inside the metric measures is a move of the decimal point.

The pint belongs to another system. It is an eighth of a gallon, and the gallon has several definitions, so the pint has just as many. The US liquid gallon measures 231 cubic inches, and that is where the pint of 0.4732 litres comes from[1]. The British act fixes the imperial gallon at 4.54609 cubic decimetres, so an eighth of it is 0.56826125 litres[2].

The third pint comes from the US series of dry measures and holds 0.5506 litres[1]. The British tables apply the same measures of capacity to liquid and to dry goods, and they say so outright[1].

The pint is one of the few imperial measures British rules kept for trade: draught beer and cider may be dispensed by the pint, and milk may be sold by the pint in returnable containers[3]. The same pint in millilitres is shown by the pints to ml converter.

One multiplication does the whole job. You multiply the number of pints by 0.473176473 and the answer comes out in litres.

Take a US recipe for lemonade that calls for six pints of water. Six pints times 0.473176473 gives 2.8391 litres. Two 1.5-litre bottles cover that amount. The first gives 1.5 litres and you measure the remaining 1.3391 litres out of the second.

Writing the units out shows why the answer lands in litres: 6 pt × (0.473176473 l ÷ 1 pt) = 2.8391 l. The pint appears twice in that line, once above the bar and once below it, so it cancels and litres are what remain.

For the imperial pint the multiplier is 0.56826125, and for the US dry pint it is 0.5506104713575. The Pint type switch substitutes the right figure on its own, and it recalculates even when you change the measure after typing the number.

The liters to pints converter does the sum the other way round, and the pints to quarts converter gives the same pints in quarts.

Two US pints are 0.9464 litres. A full litre is 0.0536 litres away, just under 54 millilitres.

With the imperial pint the same sum comes out on the other side. Two imperial pints give 1.1365 litres, which is 0.1365 litres more than a litre. That surplus is over thirteen percent of a litre.

The more pints there are, the wider the gap between the two measures. Ten imperial pints are 5.6826 litres and ten US pints are 4.7318 litres. Between those two figures lie 0.9508 litres, a shade more than two US pints hold.

0.5683 litres. Since 19 September 2024, British rules allow 568 millilitres as a quantity in which prepacked still wine and sparkling wine may be sold[5]. The same change added 200 millilitres for still wine and 500 millilitres for sparkling wine.

568 millilitres is one imperial pint, so the bottle carries the capacity a pub glass carries. A standard wine bottle holds 0.75 litres, which is 0.1817 litres more.

The United States allows the same size: its federal list of wine bottle sizes carries 568 millilitres, and next to it 473 millilitres, which is the US pint[6]. On a British shelf the figure is a full imperial pint written in millilitres.