What do they use for distance kilometers or miles?

Answer 1

It depends on who you mean by 'they.'

In the United States, we will use miles for measuring distance.

In most other parts of the world, particularly in the European, Australian, Asian, and African continents, they will use kilometers to measure distance.

Answer 2

It depends on the country or region. In the United States, miles are commonly used for measuring distance, while in many other countries, kilometers are the standard unit of measurement.