What Is a Pencil’s Length?

A standard number 2 pencil is about 7.5 inches long and about 7 millimetres in diameter. Most golf pencils and library pencils are about 3.5 inches long. Graphite is used most often to make the core of a pencil.

Romans and Egyptians used a stylus made of lead to write back in ancient times. In the 1500s, near Grey Knotts, England, a graphite deposit was found, and graphite started to be used as a writing material.

Simon and Lyndiana Bernacotti made the first modern pencil when they put a graphite stick inside juniper wood in 1560. Yellow paint has been used to cover most pencils in the U.S. since 1890.

Misha Khatri
Misha Khatri is an emeritus professor in the University of Notre Dame's Department of Chemistry and Biochemistry. He graduated from Northern Illinois University with a BSc in Chemistry and Mathematics and a PhD in Physical Analytical Chemistry from the University of Utah.

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