You can calculate the height and width, then using a stocking table for that species and site class you can estimate the volume in m^3, then adjusting for the specific gravity of that species you can calculate an approximate weight. read more
They graphed the weight verses the diameter and height for each kind of tree. Next they found formulas that would reproduce the graphs. By using these formulas we can estimate a tree's green weight from its diameter and height. read more
Example: An 80 foot hardwood tree with a 24” diameter has a weight that can exceed 20,000 pounds. A 50-foot pine tree with a 12” diameter has a weight of more than 2000 pounds. These algorithms calculate the total weight of a tree including root. read more