Milliliter (mL)
The milliliter, written as mL, is a metric unit for volume. It is one-thousandth of a liter or one cubic centimeter. It was established as part of the metric system and is used worldwide in medicine, cooking, and science. Because it measures small amounts, it is ideal for both everyday and laboratory use. It is the same size as a cubic centimeter, so people in different fields can easily understand it. This makes the milliliter one of the most useful and common units of measurement in the liter.
US Gallon (gal)
The US gallon, denoted as gal, is a unit of volume that equals approximately 3.785 liters. It comes from old English wine gallons and became official in the US in the 1800s. People in the US still use it extensively for fuel, beverages, and cooking. The US gallon is smaller than the British one, which leads to different numbers in global trade and when comparing fuel use. Although most countries use metric units, the US gallon remains a significant part of US life.