Centimetres
centimeters is the best for measuring the length of a pencil. meters could be used but not as convenient. microns (1 millionth of a meter) is definitely too small.
14 centimeters. 140 millimeters I have regular pencils that are 18 cm (180 mm) lomg.
You would measure it in centimeters.
The best estimate is 15 centimeters which is about 6 inches
they are measured in centimeters.
centimeters
Depends on how long the pencil is.
Centimetres.
4,5 centimeters
A pencil is about 19 centimeters long
The width of a pencil would be the metric unit of centimeters
it matters what kind of pencil it is.