Choose Input file (.xlsx)No file chosen

Choose Extinction coefficient file (.dat)No file chosen

Choose Emission file (.dat)No file chosen

Choose Refractive Index file (.dat)No file chosen

Calculate

If you used this tool in your data analysis, please indicate so by citing FRET-Calc: A free software and web server for Förster Resonance Energy Transfer Calculation in your work.

Download some sample data, additional spectral data and executables on our GitHub page.