Meter or Metre depending on how your county spells it.
Metre.
2.18723 yard ------------------------- A meter IS a measure of distance, the international standard unit for measuring length or distance.
The standard unit of measure for length in the metric system is the meter.
The standard unit for measuring length and distance is the meter (m) in the metric system.
mainly meters are being used : symbol (m)
The standard unit of measure for length in the metric system, known as the "ku," is the meter.
Meter or Centimeter
Metre
millimeters or possibly centimeters but most likely millimeters
By unit of length and distance and conversion ,we can say that the most appropriate unit to measure the length of a finger is cm.
By unit of length and distance and conversion ,we can say that meter is a a standard unit of measurement
Kilometers are a unit of length, used to measure distance.