Nanometre

What is a Nanometre?

A nanometre is a very tiny way to measure length. It is one billionth of a metre! To imagine how small this is, think of a human hair—it is about 80,000 to 100,000 nanometres thick.

Why Do We Use Nanometres?

Nanometres help us talk about very small things, like the tiny parts that make up everything around us. Scientists use this unit when they study things like computer chips and molecules in the air we breathe.

Fun Facts About Nanometres

The word "nanometre" has two parts. "Nano-" comes from an Ancient Greek word for "dwarf." "Metre" is from a Greek word for a measurement unit. Together, they make the name for this very small unit of length. Nanometres help us make faster computers and better medical tools.