Board Foot Calculator for Tree

Input Length (feet):

Input Diameter (inches):

Champlain Log Rule (bf):

Clements Log Rule (bf):

British Columbia Log Rule (bf):

Brereton Log Rule (bf):

Doyle Log Rule (bf):

International 1/4 Log Rule (bf):

Ontario Log Rule (bf):

Scribner Log Rule (bf):

Spaulding Log Rule (bf):

The formulas used to calculate the volumes are:

Cubic Feet: \[ \text{Cubic Feet} = 0.005454 \times d^2 \times L \]
Cubic Meters: \[ \text{Cubic Meters} = \text{Cubic Feet} \times 0.0283168 \]
Champlain log rule: \[ \text{Champ} = 0.62832 \times (d^2 - d) \times \frac{L}{12} \]
Clements log rule: \[ \text{Clem} = 0.7854 \times (d^2 - 2d) \times \frac{L}{16} \]
British Columbia log rule: \[ \text{BC} = 0.0476 \times (d - 1.5)^2 \times L \]
Brereton log rule: \[ \text{Brer} = 0.06545 \times d^2 \times L \]
Doyle log rule: \[ \text{Doyle} = (d - 4)^2 \times \frac{L}{16} \]
Ontario log rule: \[ \text{Ontario} = \frac{0.55 \times d^2 - 1.2 \times d}{12} \times L \]
Scribner log rule: \[ \text{Scribner} = 0.0494 \times d^2 \times L - 0.124 \times d \times L - 0.269 \times L \]
Spaulding log rule: \[ \text{Spault} = \frac{0.778 \times d^2 - 1.125 \times d - 13.482}{16} \times L \]