Utiliki

Volume & Capacity Converters

72 converters, all running in your browser.

Volume is where unit conversion is most likely to go quietly wrong, because the same word means different amounts on either side of the Atlantic.

A US gallon is 3.785 litres; an imperial gallon is 4.546 litres — 20% larger. A US pint is 16 US fluid ounces; an imperial pint is 20 imperial fluid ounces. Even the fluid ounce differs: about 29.57 ml in the US, about 28.41 ml imperially. A recipe calling for "a pint of cream" means noticeably different quantities depending on where it was written.

The units here are the US customary ones, which is what almost all online recipes and product listings use. The litre itself is not an SI base unit — the cubic metre is — but it is accepted for use with SI and is defined as exactly one cubic decimetre.

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Conversion factors

FromToMultiply by
LitersMilliliters1000
LitersGallons0.26417205
LitersQuarts1.0566882
LitersPints2.1133764
LitersCups4.2267528
MillilitersLiters0.001
MillilitersGallons2.6417e-4
MillilitersQuarts0.0010566882
MillilitersPints0.0021133764
MillilitersCups0.0042267528
GallonsLiters3.7854118
GallonsMilliliters3785.4118
GallonsQuarts4
GallonsPints8
GallonsCups16
QuartsLiters0.94635295
QuartsMilliliters946.35295
QuartsGallons0.25
QuartsPints2
QuartsCups4

Cooking Conversions Need a Density

Recipes mix mass and volume freely — "200 g flour, 1 cup milk" — and converting between the two is the one thing a volume converter cannot do for you. It needs the density of the specific ingredient, and for flour it also needs to know how the cup was filled.

Ingredient1 US cup
Water237 g
Milk245 g
Plain flour, spooned120 g
Plain flour, scooped140 g
Granulated sugar200 g
Butter227 g
The flour rows are why baking by weight produces more consistent results than baking by volume. A 17% difference in flour from how the cup was filled is the difference between a tender crumb and a dense one.

The Metric Cup Is Different Again

Australia and New Zealand use a 250 ml metric cup; the US cup is about 237 ml. Recipes rarely say which, and for most cooking the 5% difference is absorbed. For baking it is not.

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