Relative Perceived
Brightness Calculator
662nm
4%
(23.61x)
506nm
100%
UPDATE!
You can now enter "?" for the
mW value, to calculate an
equivalent automatically!

nm   mw
------ VS ------
nm   mw
Compare:  Dot Beam
Based on CIE Tables: here


NOTE: This tool is no longer being updated.
It now exclusively uses "Chroma Compatible" mode.
The former "chromacompat" URL variable is no longer neccesary.


It uses CIE table values.
Raleigh Scattering is factored in if you choose "beam".