What is the metric equivalent of one gallon in liters?

One gallon is approximately equal to 3.8 liters. This conversion is important in contexts where measurements need to be understood in both imperial and metric systems. The U.S. gallon, which is the version typically used in conversions, is defined as 3.78541 liters, but for practical purposes, it is commonly rounded to 3.8 liters. Understanding this conversion can be especially useful in fields such as cooking, science, and any situation where liquid volumes are compared or converted. The other values listed do not accurately represent the conversion of one gallon, emphasizing the importance of using the correct value for effective communication and understanding when working with measurements.