Millilitres to Gallons (mL to gal)

Common questions

How many gallons is 1,000 mL?

0.2642 US gallons, a bit over a quarter of a gallon. The converter prints 0.264172052358 as the headline, because a US liquid gallon is 3,785.411784 mL and 1,000 does not divide into it evenly. The amounts asked for next most often: 250 mL is 0.06604 gallons, 500 mL is 0.13209 gallons, 750 mL is 0.19813 gallons, 2,000 mL is 0.52834 gallons, 3,785.411784 mL is exactly 1 gallon and 5,000 mL is 1.32086 gallons. Type any of them into the From box and the answer appears without pressing anything.

How do I convert mL to gallons myself?

Divide by 3,785.411784, or multiply by 0.000264172052358, which is the same operation. A US liquid gallon is defined as exactly 231 cubic inches and an inch is exactly 2.54 cm, so 3,785.411784 mL is a definition rather than a measurement and the page carries all of its digits. Going the other way, multiply gallons by 3,785.411784. The Swap units button between the two boxes turns this page into a gallons to millilitres converter without reloading it, and the number you typed stays where it is while the pair reverses.

How many mL in a gallon, half a gallon and a quart?

One US gallon is 3,785.411784 mL, half a gallon is 1,892.705892 mL, a quart is 946.352946 mL, a pint is 473.176473 mL and a cup is 236.5882365 mL, because a gallon is exactly 4 quarts, 8 pints, 16 cups and 128 US fluid ounces. A jug reads those as roughly 3,785, 1,893, 946, 473 and 237 mL. To get them from this page, press Swap units so gallons feed millilitres, then type the fraction as a decimal: 0.5 rather than 1/2, since the field takes digits, one decimal point and an optional minus sign, with thousands commas allowed.

Is this the US gallon or the imperial gallon?

The US liquid gallon of 3,785.411784 mL, which is what a US pump, recipe or container means. The imperial gallon still used in the UK is exactly 4.54609 litres, so 4,546.09 mL, about a fifth larger: one imperial gallon is 1.2009499255 US gallons. For imperial gallons divide millilitres by 4,546.09 instead, which makes 1 mL 0.000219969248299 of one, or choose Gallon (imperial) in the To box, which lists every volume unit whether the uncommon units switch is on or not. Ticking that switch, marked Show 5 more, also adds the imperial gallon, imperial pint, imperial fluid ounce, cubic inch and cubic foot to the list under the answer. The US dry gallon of about 4,404.88 mL, used for produce rather than liquids, is not in the menu at all.

How many 500 mL bottles make a gallon?

7.570823568 of them, so seven 500 mL bottles fall about 285 mL short of a gallon. A gallon is 3.785411784 one-litre bottles, 1.892705892 two-litre bottles and 10.66 of the 355 mL cans sold as 12 US fluid ounces. Going the other way, a 24-pack of 355 mL cans is 8,520 mL, which the converter puts at 2.25074588609 gallons.

Why does the answer show so many decimal places, and how do I copy it?

Because millilitres rarely land on a whole number of gallons: 1 mL is 0.000264172052358 gallons. Results print to twelve significant digits with trailing zeros dropped, so 3,785.411784 mL comes out as a clean 1 rather than 0.99999999, and you can round where you want. The Copy result button copies the figure exactly as printed but without the thousands separators, so it pastes straight into a spreadsheet, and every row in the list under the answer has its own Copy button.

Does anything I type leave my browser?

No. The conversion is one division against a table of factors that ships with the page, so there is no upload and no account, and it keeps working with no network connection once the page has loaded. The amount you typed is kept in your own browser storage so the field is where you left it next time, the Start over button at the top of the page clears it, and opening this page on millilitres to gallons does not disturb the pair the main converter remembers.