You can learn about algorithms used for calculation or how to acknowledge this service in the About section. If you need bulk K-corrections calculation, please consider using the code for popular data languages published in Get the code section.
This is an new version of the service including GALEX UV bands. It was originally constructed for and used in the Universal UV-optical Colour-Colour-Magnitude Relation of Galaxies paper. This is an updated version with the redshift coverage up to z=0.5. For consistency reasons we keep as well the historical version developed in 2010.