Convert Gallon (US) (gal (US)) to Cubic Meter (m³) instantly.
About these units
Gallon (US) (gal (US))
The US gallon is defined as exactly 231 cubic inches, or 3.785411784 liters. It is widely used in American commerce for gasoline, milk, water, and other household liquids. Its historical roots lie in old English wine and ale gallons, whose varying definitions ultimately led to divergent US and UK systems. Today, the US gallon remains deeply embedded in American culture, especially in automotive contexts—fuel economy ratings such as "miles per gallon" (MPG) illustrate its everyday relevance. Despite the global shift toward metric volume units, the US gallon persists due to familiarity and regulatory inertia. It remains an iconic unit, symbolizing uniquely American measurement traditions.
Cubic Meter (m³)
The cubic meter is the SI unit of volume, representing the volume of a cube one meter per side. It is vastly larger than a liter, since 1 m³ = 1,000 L. Cubic meters measure the volumes of rooms, shipping containers, refrigeration units, natural gas consumption, and water flows in hydrology and civil engineering. Because it is derived directly from the meter, the m³ integrates perfectly into other SI measurements such as density (kg/m³) and flow rate (m³/s). In industry, pricing and standards for timber, construction materials, and natural gas often use cubic meters. For environmental science, m³ is essential when modeling rainfall runoff, river discharge, or air pollutant concentrations. It stands as the backbone of large-scale volumetric measurement.