Enter the length of the tree (in) and the tree diameter inside bark (in) into the Calculator. The calculator will evaluate the Lumber Yield.

## Lumber Yield Formula

LY = [L*(D-4)*(D-4)]/16

Variables:

- LY is the Lumber Yield (in^3)
- L is the length of the tree (in)
- D is the tree diameter inside bark (in)

## How to Calculate Lumber Yield?

The following steps outline how to calculate the Lumber Yield.

- First, determine the length of the tree (in).
- Next, determine the tree diameter inside bark (in).
- Next, gather the formula from above = LY = [L*(D-4)*(D-4)]/16.
- Finally, calculate the Lumber Yield.
- 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.

length of the tree (in) = 16

tree diameter inside bark (in) = 6