Estimate recommended lure weight based on rod rating and technique.

Estimate lure running depth based on line length, line diameter, and lure type.

Estimate lure buoyancy rating from weight and displacement.

Estimate line weight based on length and diameter.

Estimate required line strength based on target fish weight and technique.

Estimate line diameter based on test strength and line type.

Estimate line capacity based on reference specs and line diameter.

Estimate line buoyancy based on density and length.

Estimate leader length based on water clarity, lure type, and species.

Estimate knot strength based on line strength and knot efficiency.