Probably that refers to expressing length in standard (metric) units, like meters, millimeters, and kilometers, instead of some non-standard (non-metric) unit like feet, or light-years.
Chat with our AI personalities
The basic unit of length in the metric system is the meter.
It means multiplying with constants from a non metric system (such as length using yards, feet, inches) to a metric system (using meters)
k is "kilometer" which is a metric unit of length. It's equal to 1000 meters.
10mm.mm is millimeter, a metric unit of length.10mm = 1cm
The basic metric unit of measure for length is the meter (m).