Basal Area Calculator

Basal Area Calculator calculator can be used to calculate the basal area of a forest stand, which is an important measure of stand density and productivity.

Input Parameters

Calculation Results

Calculation Formula

Basal Area (BA) = π * (DBH / 2)² * (Number of Trees / 7000)

Where:
π = 3.14159
DBH = Diameter at Breast Height
Number of Trees = Number of trees per acre
7000 = Conversion factor to convert from square inches to square feet

Result

Basal Area (BA): 0.00 square feet per acre

Basal Area Calculator Calculator Usage Guide

Learn how to use the Basal Area Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the diameter at breast height (DBH) of the trees in inches.
  2. Enter the number of trees per acre.
  3. Click the "Calculate" button to compute the basal area.
  4. The result will be displayed in square feet per acre.

Understanding Basal Area

Basal area is a measure of the total cross-sectional area of all trees in a forest stand, measured at breast height (typically 4.5 feet or 1.375 meters). It is an important indicator of stand density and productivity. A higher basal area generally indicates a more dense stand, which can affect growth, yield, and management decisions.

Example

If you have trees with an average DBH of 12 inches and there are 200 trees per acre, the basal area would be calculated as follows:

Basal Area (BA) = π * (12 / 2)² * (200 / 7000)
                = 3.14159 * 6² * (200 / 7000)
                = 3.14159 * 36 * 0.02857
                = 3.14159 * 1.02002
                = 3.20 square feet per acre