Divide the distance in centimeters by 0.0000001 to convert to nanometers. For example, if you have 0.0005 cm, divide 0.0005 by 0.0000001 to get 5,000 nm,
Multiply the distance in centimeters by 10,000,000 to convert to nanometers. In this example, multiply 0.0005 by 10,000,000 to confirm your answer of 5,000 nm.
Verify your answer with an online centimeters-to-nanometers converter. Enter the distance in centimeters and the site displays the distance in nanometers.