Fishing Rod & Line Size Calculator
Species-Based Selector
Get rod/line/lure recommendations by target species
Line Strength Calculator
Calculate line diameter and breaking strength
Formula
Rod Power matches Line Weight and Lure Weight | Mono Diameter ≈ 0.1 × lb^0.45 mm | Braid Diameter ≈ 0.055 × lb^0.4 mm
Frequently Asked Questions
How do I choose the right fishing rod weight?
Match your rod power to your target species: ultra-light for panfish, light for trout, medium for walleye, medium-heavy for bass, and heavy for pike/catfish. The rod should handle the line weight and lure sizes you plan to use.
What fishing line should I use?
Monofilament is versatile and forgiving (good for beginners). Fluorocarbon is nearly invisible underwater (great for clear water). Braided line has zero stretch and high sensitivity (ideal for heavy cover and deep water). Many anglers use braid as mainline with a fluorocarbon leader.