Convert Gallon (US) (gal (US)) to Cord (cd) 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.
Cord (cd)
The cord is a large unit used in North America to measure firewood, defined as a neatly stacked pile measuring 128 cubic feet (usually arranged as 4 ft × 4 ft × 8 ft). Its strict definition helps prevent fraud in firewood sales and ensures fairness in trade. The cord accounts for both wood and air space, though the amount of actual wood can vary depending on how tightly it is stacked. Despite the prevalence of metric units worldwide, the cord remains a robust standard in forestry, firewood commerce, and rural heating practices across the US and Canada.