Free tools

Fishing Tools

Quick, practical tools for the water — each one explains how it works so you can use it with confidence.

• Fish Weight Calculator

  Estimate a fish's weight from its length and girth — no scale needed.

  Open tool

• Fishing Hook Size Chart

  Hook sizes from #32 to 10/0 explained, with what to use for each species.

  Open tool

• Fishing License Finder

  Pick a state to get license basics and a direct link to the official agency.

  Open tool

Related guides

• Fishing Tips & Techniques
• Fishing Gear Basics
• Freshwater vs Saltwater Fishing
• Seasonal Fishing Guide
• Responsible Angling & Conservation
• State fishing guides