Volume of any tree species can be calculated by the following formula:

V= d2h

Where V stands for tree volume

d for diameter of the tree at breast height

h for height of the tree

For more details you can go through the attached publications

Two-way metric volume table of Acacia auriculiformis ( Akashmoni) in the

plantation.... Acacia auriculiformis (Akashmoni)

Plantation: (Latif et al. 1995)

For Metric Unit

 ln(V ) - 8.208 2.2389 ln (D) ob   

 ln(V ) -10.7709 2.2389 ln (G) ob   

 ln(V ) - 9.125 1.918 ln(D) 0.67988 ln(H) ob     

 ln(V ) -11.3205 1.918 ln(G) 0.67988 ln(H) ob     

 ln(V ) - 9.187 2.468 ln(D) ub   

 ln(V ) -12.0121 2.468 ln(G) ub   

 ln(V ) -10.2398 2.100244 ln(D) 0.78044 ln(H) ub     

 ln(V ) -12.6440 2.100244 ln(D) 0.78044 ln(H) ub   ...Plz check sir Attaching PDF....Useful to u sir.