Foot (ft): The foot is equal to 12 inches or 0.3048 meters. It is commonly used in everyday measurements, particularly in countries that do not use the metric system.
Micrometer (µm): The micrometer, also known as the micron, is equal to one one-millionth of a meter (0.000001 meters). It is used in scientific research, especially in fields like microscopy and nanotechnology.