How do you convert 800 nanometers to meters?

1 nanometer = 10-9 meter 68 nanometers = 68 x 10-9 meter It may mean more to you in this form: 0.000000068 meter

800 meters = 0.8 kilometers. (A kilometer is 1000 meters.)

692.1 nanometers is equivalent to 0.0000006921 meters, or 6.921 x 10^-7 meters.

Multiply by 10^-9

345 nanometers = 345 x 10-9 meters.