Milliliters to Gallons Converter

About the ml to gal calculation

One milliliter is exactly 0.00026417 gallons, so converting between them is a single multiplication. Enter any value above and the result updates as you type. The everyday unit for drinks, medicine doses and recipe liquids. The US gallon is 3.785 L. The imperial gallon is 4.546 L — a 20% difference.

Formula

gal = ml × 0.00026417

1 ml = 0.00026417 gal
1 gal = 3,785.41 ml

Worked example

To convert 500 ml, multiply by 0.00026417: 500 × 0.00026417 = 0.132086 gal.

Frequently asked questions

How many gallons are in a milliliter?

There are 0.00026417 gallons in one milliliter. To convert any amount, multiply the number of milliliters by 0.00026417.

How do I convert gallons back to milliliters?

Divide instead of multiplying, or equivalently multiply by 3,785.41. One gallon is 3,785.41 milliliters.

Is this conversion exact?

Yes. Since the international agreement of 1959, the relationship between milliliters and gallons is defined exactly rather than measured, so the only rounding here is in how many decimal places we show.

Where is each of these units used?

Milliliters: the everyday unit for drinks, medicine doses and recipe liquids. Gallons: the US gallon is 3.785 L. The imperial gallon is 4.546 L — a 20% difference.

Sources

• NIST Special Publication 811 — Guide for the Use of the International System of Units