Spike's Calculators

Calculate the number of trees and the spacing from an average tree diameter and basal area in square feet per acre.

the average tree diameter is 14 inches

B = DBH² * 0.00545415391

calculate the basal area of one tree

14² = 196 * 0.00545415391 = 1.069 ft²divide the total basal area by the tree basal area to get the number of trees per acre

125 ÷ 1.069 = 116 trees per acre.To find the spacing between the trees, divide one acre (43560 square feet) by the amount of trees;

43560 ÷ 116 = 375.5172413793103Assuming the spacing between these trees is the same for in row and in between rows spacing, take the square root of this amount.

The square root of 375.5172413793103 = 19.4The spacing between the trees = 19 feet (rounded)

- he average diameter of the trees in inches (diameter measured at breast height)
- total basal area of all the trees per acre, in square feet

- the amount of trees per acre
- the spacing between the trees in feet

- Area of a Circle from Diameter in Metres
- Area of a Circle from Foot and Inch Diameter
- Basal Area from Diameter in Centimetres
- Basal Area from Diameter in Inches
- Basal Area from Girth Measured @ Breast Height in Centimetres
- Basal Area from Girth Measured @ Breast Height in Inches
- Circumference (Girth) of a Log from Diameter, Foot and Inch
- Convert Diameter in Centimetres to Girth in Inches
- Circumference (Girth) of a Log from Diameter, Inch and Fraction
- Diameter of Tree from Circumference Measurement
- Diameter/Centimetres to Inches/Quarter Girth
- Fixed Area Plot, Acres
- Fixed Area Plots, Hectares
- Number of Trees and Tree Spacing Calculated from Basal Area
- Square Feet (Quarter Girth) to Square Centimetres
- Square Feet (Quarter Girth) to Square Metres
- Trees per Hectare to Trees per Acre
- Trees per Acre to Trees per Hectare