Formula used
Cylindrical weight = π × radius² × length × entered density
Worked log weight example
Log Weight Calculator example: π × (21.5 in ÷ 12 ÷ 2)² × 14.3 ft = 36.05 ft³. Multiplying by 45 lb/ft³ gives approximately 1,622 lb.
Use the weight for planning
Use the estimate only for rough comparison; forestry scaling, measured end diameters, or an actual scale is better for sale, hauling, and lifting.
Why scale or supplier weight may differ
Taper, bark, butt swell, sweep, hollows, species, and moisture content often dominate the difference between calculated and scale weight.
Questions specific to this calculation
How do taper and moisture affect a log-weight estimate?
Enter an average solid diameter and log length plus wood density. The result treats the log as a perfect full cylinder.