How to convert length units to inverse cm

[agentas]

how to convert length units to inverse cm.For example arngstroms,nanometers to cm^-1.Thanks

 

[Borek]

Please elaborate what you are trying to do.

In general - you can't, as one is a length unit, other is a spatial frequency unit. Different things.

 

[agentas]

Please elaborate what you are trying to do.

In general - you can't, as one is a length unit, other is a spatial frequency unit. Different things.

i want to use it with Fabry-Perot interferometer

 

[daveb]

Well, you could have barns per centimer, or something like that. Not sure why you'd want it, but you cold.