87 mm.
14
12 cm long
7mm is about the thickness of a standard yellow pencil. In inches, 7 mm is about 0.28 inches.
A reasonable length for a [new] pencil is 15 cm. After much [use and] sharpening, it may be reduced to a pencil [stub] only 1.5 cm = 15 mm long.
Not if all the pencils have to lie straight and neat and parallel, because 16 cm is 1 cm longer than 150 mm.But if the pencil case is more than 5.6 cm wide, then the diagonal is more than 16 cm,and the 16 cm long pencil can lie in it diagonally.
An average pencil is 190 Millimeters long.
19cm
187 mm.
A Pencil has a thickness of about 7 milimeters (mm).
14 centimeters=140 millimeters
9.34