Convert Milliliters to US Gallons
Convert Milliliters to US Gallons instantly. 1 Milliliter (mL) equals 0.0002642 US Gallons (gal (US)).
Milliliters to US Gallons conversion table
| Milliliters (mL) | US Gallons (gal (US)) |
|---|---|
| 1 mL | 0.0002642 gal (US) |
| 2 mL | 0.0005283 gal (US) |
| 3 mL | 0.0007925 gal (US) |
| 5 mL | 0.001321 gal (US) |
| 10 mL | 0.002642 gal (US) |
| 20 mL | 0.005283 gal (US) |
| 50 mL | 0.01321 gal (US) |
| 100 mL | 0.02642 gal (US) |
| 500 mL | 0.1321 gal (US) |
| 1,000 mL | 0.2642 gal (US) |
1 Milliliter = 0.0002642 US Gallons · multiply Milliliters by 0.0002642
About converting Milliliters to US Gallons
Milliliters (mL) and US Gallons (gal (US)) are both units of volume, so converting between them is a single multiplication: multiply your Milliliters figure by 0.0002642. Ten Milliliters comes to 0.002642 US Gallons, and a hundred works out at 0.02642 US Gallons.
Rule of thumb: going from Milliliters to US Gallons divides, so the figure always shrinks — it takes about 3,785.41 Milliliters to make a single US Gallon. If your answer came out bigger, you have the conversion the wrong way round.
What is a Milliliter?
A milliliter is one thousandth of a liter, and it is exactly the same size as a cubic centimetre — the "cc" stamped on engines and syringes measures precisely the same thing. That equivalence is quietly useful: a 600 cc motorcycle engine and a 600 mL bottle of water occupy identical volumes, so figures from medicine and mechanics can be compared without any translation at all. The milliliter dominates wherever small quantities must be stated unambiguously: pharmacy, laboratory work, cosmetics and airline carry-on liquid limits are all written in mL rather than in spoons or ounces.
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 standard wine pour is about 150 milliliters, 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 Milliliters converter, or browse all Volume converters.
Frequently asked questions
How many US Gallons are in one Milliliter?
There are 0.0002642 US Gallons in one Milliliter.
How do I convert Milliliters to US Gallons?
Multiply the number of Milliliters by 0.0002642. For example, 10 Milliliters = 0.002642 US Gallons.
What is 100 Milliliters in US Gallons?
100 Milliliters is equal to 0.02642 US Gallons.
How do I convert US Gallons to Milliliters?
Multiply the US Gallons value by 3,785.41 (or divide by 0.0002642).
Is this Milliliters to US Gallons conversion exact?
The definition is exact — Milliliters and US Gallons are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Milliliter?
A milliliter is one thousandth of a liter, and it is exactly the same size as a cubic centimetre — the "cc" stamped on engines and syringes measures precisely the same thing. That equivalence is quietly useful: a 600 cc motorcycle engine and a 600 mL bottle of water occupy identical volumes, so figures from medicine and mechanics can be compared without any translation at all. The milliliter dominates wherever small quantities must be stated unambiguously: pharmacy, laboratory work, cosmetics and airline carry-on liquid limits are all written in mL rather than in spoons or ounces.
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.

