Spike's Calculators


Swedish Log Volume Calculation Method Two

Swedish Log Volume Calculators: Method One - Method Two - Method Three
Spike VM

"Measuring of Roundwood" as recommended by the Timber Measurement Council

Measuring log volume using mid-point diameter measurement
Mid-point measurement may be used on all tree species, regardless of diameter and length.
Diameter measurements are measured under the bark.

Formula used:
V = π ÷ 4 * L * Dm²
V = the log volume in cubic metres
L = length of the log in metres
Dm = the mid-point diameter

Using Mid-Point Diameter

Length of Log m
Mid-length Diameter cm


Log Volume


  1. the log length in metres
  2. the diameter measured at the mid-length of the log


  1. volume of log in cubic metres
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