We’re fly fishing enthusiasts, Gonzo Fly Brothers. And we’ve created this calculator to help fly fishermen find the best line weight for their rod.
There are three types of rods - single handed, switch and double handed.
Using the right line weight will help you load your rod better and have a better fishing experience.

“Line” - fly line weight recommendations for different weight classes of rods
“Load” - min and max recommended line weight for the rod