Convert Gallon to Cubic Meter

One gal equals 0.003785411784 m³. This converter allows you to easily convert between Gallon and Cubic Meter in real time.

Formula

gal × 0.003785411784 = m³

Example: 1 gal = 0.003785411784 m³

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 Cubic Meter?

The cubic meter is the SI derived unit of volume, representing the space occupied by a cube with sides of one meter. It is widely used in construction for quantities of concrete, earthwork, and fill material. In the energy sector, natural gas is traded and billed in cubic meters. One cubic meter equals 1,000 liters, making it a practical unit for large-scale liquid storage, water reservoirs, and shipping container capacities.