155 cm to nm conversion result above is displayed in three different forms: as a decimal (which could be rounded), in scientific notation (scientific form, standard index form or standard form in the United Kingdom) and as a fraction (exact result). Every display form has its own advantages and in different situations particular form is more convenient than another. For example usage of scientific notation when working with big numbers is recommended due to easier reading and comprehension. Usage of fractions is recommended when more precision is needed.
If we want to calculate how many Nanometers are 155 Centimeters we have to multiply 155 by 10000000 and divide the product by 1. So for 155 we have: (155 × 10000000) ÷ 1 = 1550000000 ÷ 1 = 1550000000 Nanometers
So finally 155 cm = 1550000000 nm