A nanometer is defined as a billionth of a meter. This is an extremely short length, it is microscopic.
Do you know what a nanometer is? It is one thousand millionth of a meter, or you could perhaps visualise it as one millionth of a millimeter. So I hope you can see that this is a silly question.
A nanometer is about one billionth of a metre (0.000000001 meters)
Nano means 10-9 = 1/109, so 532 nanometers is 532 x 10-9 meters. About half a micron (micrometer); a micron is a thousandth of a millimeter.
38.5 inches long