Convert Gallon to Milliliter

One gal equals 3,785.411784 mL. This converter allows you to easily convert between Gallon and Milliliter in real time.

Formula

gal × 3,785.411784 = mL

Example: 1 gal = 3,785.411784 mL

What is Gallon?

The gallon is a unit of volume in the US customary system, defined as exactly 3.785411784 liters. In the United States, gasoline is sold by the gallon, and prices at gas stations are displayed per gallon. Milk, paint, and other household liquids are also commonly sold in gallon containers. Note that the imperial gallon used in the United Kingdom is a different, larger unit equal to approximately 4.546 liters. All conversions on this page use the US gallon.

What is Milliliter?

The milliliter is one-thousandth of a liter and is equivalent to one cubic centimeter. It is the standard unit for small liquid volumes in medicine, where dosages are prescribed in milliliters (for example, "take 5 mL of cough syrup"). Cosmetics and personal care products list their volumes in milliliters. In cooking, a teaspoon holds approximately 5 mL, and measuring cups are often graduated in milliliters alongside other units.