The base unit is the meter. Larger and smaller units based on the meter are also used, for example downward: millimeter, micrometer (a.k.a. "micron"), nanometer; and upward: the kilometer. Larger units like megameter and gigameter could be used, but they are seldom used in practice.
The base unit for length is the metre.
The base unit of length in the International System of Units (SI) is the meter (m).
The metric unit of length is the 'meter'.
The base unit for length is the metre.
The basic unit in the metric system for length is the meter.
The base unit for length is the metre.
The base unit of length in the International System of Units (SI) is the meter (m).
The metric unit of length is the 'meter'.
the base unit of length is the metre.
The base unit for length is the metre.
The basic metric unit of measure for length is the meter (m).
The standard unit of measure for length in the metric system is the meter.
The base unit for length is the metre.
The basic unit in the metric system for length is the meter.
Metre is the SI, or metric, base unit of length.
The standard unit of measure for length in the metric system, known as the "ku," is the meter.
The SI, or metric, base unit for length is the metre.