Firewood Volume Calculator

Estimate the number of cords of firewood from standing trees based on DBH, merchantable height, and tree count.

Inputs

Diameter at Breast Height

inches

Merchantable Height

feet

Number of Trees

Tab to move between fields

Results

Cords of Firewood

2.35 cords

Face Cords7.06 face cords

Total Wood Volume188 ft³

Volume Per Tree18.8 ft³

Green Weight (est.)4.1 tons

Seasoned Weight (est.)2.9 tons

Heating Value (est.)47 million BTU

Market Value (low)$588.00

Market Value (high)$941.00

How to Use This Calculator

Enter the Diameter at Breast Height (DBH) in inches for the trees you are measuring.
Enter the Merchantable Height in feet — the usable log height above the stump.
Enter the Number of Trees to calculate total production across the stand.
Review Cords and Face Cords to estimate firewood yield for sale or personal use.
Check Heating Value in million BTU and Market Value range to assess the economic return.

How the result changes with Diameter at Breast Height

Diameter at Breast Height	Cords of Firewood
8.4	0.85 cords
19	4.33 cords
33	13.07 cords
44	23.23 cords

What each input means

Diameter at Breast Height: Average tree diameter at 4.5 feet above ground in inches.
Merchantable Height: Usable trunk height in feet from stump to first major limbs or defect.
Number of Trees: Total number of trees to process into firewood.

How this is calculated

Worked example, using the default values

Identify Input Parameters
Diameter at Breast Height = 14, Merchantable Height = 32, Number of Trees = 10 = 3 input(s) provided
Calculate Cords of Firewood
2.35 = 2.35
Calculate Face Cords
Face Cords
7.06 = 7.06
Calculate Total Wood Volume
Total Wood Volume
188 = 188

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