Use these simple formulas to calculate the weight of your fish. All of
these will result in reasonable approximations of a fishes weight.
Practice Catch & Release when possible to preserve our fisheries.
The rule of thumb for fish weights of various body types are:
Generalized formula for
calculating the weight of fish is as follows
girth X length) divided by 800
BASS - Weight Calculation
Girth ÷ 1,200 = weight
(length x length x girth ÷ 1,200) = weight
You can also use
(length X length X length) divided by 1600
BLUEGILL Weight Calculation
length X length) divided by 1200
3,500 = weight
(length x length x length ÷ 3,500) = weight
TROUT & SALMON Weight
Girth² ÷ 800 = weight
(length x girth x girth ÷ 800) = weight
WALLEYE Weight Calculation
Length³ ÷ 2,700 = weight
(length x length x length ÷ 2,700) = weight
CATCH & RELEASE TIPS
1. Play fish quickly. Avoid netting if possible.
2. Handle carefully, avoid stress to eyes, fins, gills, and protective
3. Remove hooks with pliers. Cut line if gill-hooked or swallowed.
4. Measure fish, photograph and release as quickly as possible.
To determine the accurate length
of a fish,
measure a straight line from the tip of the jaw (mouth closed)
tip of the compressed tail fin.