Enter the tree radius (in) and the tree length (ft) into the Tree Weight Calculator. The calculator will evaluate the Tree Weight. 

Tree Weight Formula

The following two example problems outline the steps and information needed to calculate the Tree Weight.

TW = pi*R/12^2*TL*93.6


  • TW is the Tree Weight (lb)
  • R is the tree radius (in) 
  • TL is the tree length (ft) 

How to Calculate Tree Weight?

The following steps outline how to calculate the Tree Weight.

  1. First, determine the tree radius (in). 
  2. Next, determine the tree length (ft). 
  3. Next, gather the formula from above = TW = pi*R/12^2*TL*93.6.
  4. Finally, calculate the Tree Weight.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

tree radius (in) = 15

tree length (ft) = 40

TW = pi*R/12^2*TL*93.6 = ?