Example:
15 wavelength in exametres = 4.496887e-27 EHz
1 wavelength in exametres = 2.997925e-28 EHz | 1 EHz = 3.335641e+27 wavelength in exametres
Conversion Steps:
15 × (2.997925e-10 / 1e+18) = 4.496887e-27