Calculating the volume of a round log. If the log is of uniform radius r then the volume is simply given by V pir2L where L is the length of the log. Timber Volume calculations Length - Metres Mid diameter - centimetres Volume - Cubic Metres 20m 20cm 063 25 098 30 141 40 251 15m 15 027 20 047 25 074 30 106 10m 10 0079 15 0177 20 0314 25 0491 30 0707 6m 8 003 10 0047 15 0106 20 0188 25 0295 3.
If the log has a tapering radius varying from r1 to r2 then.
Sectional area recorded in m2 is usually needed to derive log volume and is derived from calculations on the measurements of diameter. Just enter the log diameter and length in the Doyle log scale calculator to calculate cubic volume of a log. The formula therefore involves measuring the diameters of the inner and outer cylinder as shown in the figure above calculating each of their volumes and subtracting the volume of the inner cylinder from that of the outer one. Calculator - Log volume calculator - Wood log volume calculation - Logs - Volume m³ BF - - Wood calculators.