Largemouth & Smallmouth Bass |
(length x length x length) divided by 1600 |

Bluegill |
(length x length x length) divided by 1200 |

Northern Pike |
(length x length x length) divided by 3500 |

Walleye |
(length x length x length) divided by 2700 |

Generalized Formula |
(girth x girth x length) divided by 800 |