The idea that customary units are more "natural" than metric units is nonsense.

Since colonization, Chile had always used a unit system based on the Spanish customary units.

Interstate 19 had originally been signed as it was constructed, in a series of small signing contracts that used customary units.

It does not proscribe customary units, and so in many spheres, either may be used.

It is one of the U.S. customary and imperial units.

The example is illustrated using United States customary units.

The exception is the United States, where standard gauge continues to be defined in terms of customary units.

Signage on this road is, however, being converted back to customary units as they are replaced.

Until the twentieth century the customary units of measure in the United States were sometimes just as variable.

In Nepal, some customary units of measurement are still used, although the metric system has been the official standard since 1968.