The Michigan DNR has provided a chart to estimate the weight of your Lake Sturgeon based on length and girth.

The length and girth of your Sturgeon catch allows you to accurately know the weight of your catch.  Use this chart below to find the weight of your Sturgeon!

More information regarding Sturgeon around the Lake St. Clair region can be found at the Michigan DNR here @ https://www.michigan.gov/dnr/managing-resources/fisheries/research/lk-st-clair

Lake Sturgeon length-girth-weight estimation chart