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Fish Weight Calculator
Estimate weight from length and girth — no scale needed
Species
Bass (Largemouth/Smallmouth)
Trout / Salmon
Walleye / Pike
Catfish
Panfish / Crappie
Other (Generic Formula)
Units
Inches
Centimeters
Total Length
Girth
(optional)
Calculate Weight
How to measure:
Length = tip of nose to end of tail. Girth = circumference at the widest point. If no girth is provided, an estimate based on typical proportions is used.