Gallons To Milliliters Conversion (gal To Ml) - Inch Calculator

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• Gallons to Milliliters Converter
• How to Convert Gallons to Milliliters
• How Many Milliliters Are in a Gallon?
• What Is a Gallon?
• What Is a Milliliter?
• Gallon to Milliliter Conversion Table
• References

Person Icon By Joe Sexton

Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Sexton, J. (n.d.). Gallons to Milliliters Converter. Inch Calculator. Retrieved January 23, 2026, from https://www.inchcalculator.com/convert/gallon-to-milliliter/

How to Convert Gallons to Milliliters

To convert a measurement in gallons to a measurement in milliliters, multiply the volume by the following conversion ratio: 3,785.411784 milliliters/gallon.

Since one gallon is equal to 3,785.411784 milliliters, you can use this simple formula to convert:

milliliters = gallons × 3,785.411784

The volume in milliliters is equal to the volume in gallons multiplied by 3,785.411784.

For example, here's how to convert 5 gallons to milliliters using the formula above.

milliliters = (5 gal × 3,785.411784) = 18,927.05892 mL

How Many Milliliters Are in a Gallon?

There are 3,785.411784 milliliters in a gallon, which is why we use this value in the formula above.

1 gal = 3,785.411784 mL

Gallons and milliliters are both units used to measure volume. Keep reading to learn more about each unit of measure.

What Is a Gallon?

The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.[1] The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.

The gallon is a US customary unit of volume. Gallons can be abbreviated as gal; for example, 1 gallon can be written as 1 gal.

Learn more about gallons.

What Is a Milliliter?

The milliliter is a unit of volume equal to 1 cubic centimeter, 1/1,000 of a liter, or about 0.061 cubic inches.[1]

The milliliter is an SI unit of volume in the metric system. In the metric system, "milli" is the prefix for thousandths, or 10-3. A milliliter is sometimes also referred to as a millilitre. Milliliters can be abbreviated as mL, and are also sometimes abbreviated as ml or mℓ. For example, 1 milliliter can be written as 1 mL, 1 ml, or 1 mℓ.

Since one milliliter is equivalent to one cubic centimeter, milliliters are sometimes expressed using the abbreviation for a cubic centimeter (cc) for things such as medical dosages or engine displacements.

Learn more about milliliters.

Gallon to Milliliter Conversion Table

Table showing various gallon measurements converted to milliliters.

Gallons	Milliliters
0.001 gal	3.7854 mL
0.002 gal	7.5708 mL
0.003 gal	11.36 mL
0.004 gal	15.14 mL
0.005 gal	18.93 mL
0.006 gal	22.71 mL
0.007 gal	26.5 mL
0.008 gal	30.28 mL
0.009 gal	34.07 mL
0.01 gal	37.85 mL
0.02 gal	75.71 mL
0.03 gal	113.56 mL
0.04 gal	151.42 mL
0.05 gal	189.27 mL
0.06 gal	227.12 mL
0.07 gal	264.98 mL
0.08 gal	302.83 mL
0.09 gal	340.69 mL
0.1 gal	378.54 mL
0.2 gal	757.08 mL
0.3 gal	1,136 mL
0.4 gal	1,514 mL
0.5 gal	1,893 mL
0.6 gal	2,271 mL
0.7 gal	2,650 mL
0.8 gal	3,028 mL
0.9 gal	3,407 mL
1 gal	3,785 mL

References

1. National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf

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