Here's how to convert centimeters (cm) to nanometers (nm):

* 1 centimeter (cm) = 10,000,000 nanometers (nm)

Explanation:

* Centimeter (cm): A unit of length equal to one hundredth of a meter.

* Nanometer (nm): A unit of length equal to one billionth of a meter.

Conversion:

* There are 100 centimeters in 1 meter.

* There are 1,000,000,000 nanometers in 1 meter.

Therefore, to convert centimeters to nanometers, you multiply by 10,000,000.