Length Girth Calculator

What is a wind farm area calculator?

Length-girth (LG) measurement is a method used to estimate the size or volume of a tree trunk or other rounded object. To measure the LG of a tree, you’ll need a flexible tape measure or a piece of string that you can use to measure the length and girth of the tree.

Wind Farm Area FAQs

Here’s how to calculate the LG of a tree:

  1. Measure the length of the tree trunk from the base of the tree to the highest point on the trunk where the trunk is at least 3 inches in diameter.
  2. Measure the girth of the tree trunk at the point where it is widest, usually about 4.5 feet above the ground. To measure girth, wrap the tape measure or string around the trunk at this point and measure the distance around the trunk.
  3. Once you have the length and girth measurements, you can use a formula to calculate the LG of the tree.

The formula is: LG = (G x G x L) / (4 x pi), where G is the girth measurement in inches, L is the length measurement in feet, and pi is a mathematical constant equal to approximately 3.14.

For example, if the girth of a tree is 30 inches and the length is 50 feet, the LG of the tree would be calculated as follows: LG = (30 x 30 x 50) / (4 x 3.14) = 11250 / 12.56 = 898.4.

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