Fishing Calculators & Tools
Free, practical tools for anglers — estimate a fish's weight, predict the tide, plan around the weather, spool the right line, log your catch, pick the best bait, tie the right knot, and check license basics.
Fish Weight Calculator
Estimate a fish's weight in pounds and kilograms from its length, and refine it with a girth measurement, using proven angler formulas
Tide Predictor
Estimate the next high and low tide and whether the water is rising or falling from one known recent high tide — a planning aid, not a substitute for official tables
Weather Fishing Planner
Score fishing conditions 0–100 from barometric pressure, wind, sky cover, water temperature, and moon phase, with an Excellent-to-Poor rating
Fishing Line Calculator
Get a recommended pound-test for your target species and estimate how many yards of line your reel spool will hold
Catch Log Tracker
Log the fish from a trip to see total catch, total and average weight, your biggest fish, and a breakdown by species
Bait Selector
Get curated live-bait and lure suggestions plus a presentation tip for your target species in fresh or salt water
Fishing Knot Guide
Browse essential knots filtered by what you need — tie a hook, join two lines, or form a loop — each with its best use, strength, and difficulty
Fishing License Checker
Look up informational license basics for select US states, then verify the current rules with the official state agency before you fish