Nanometers to Millimeters

One nanometre = one billionth of a metre = 10⁻⁹ m. Used for measuring atoms, DNA, and semiconductor features.

1 mm = 1,000,000 nm. A huge scale difference — that's why nm is used for microscopic structures.

Atoms range from about 0.1 to 0.5 nm. A silicon atom is roughly 0.2 nm. DNA strands are about 2 nm wide.