Log Weight Calculator -

How is Log Weight Calculated?

The Log Weight Calculator uses the formula for the volume of a cylinder (V = πr²h) combined with the density of the selected wood species. The total weight is simply the Volume multiplied by the Density.

This tool is essential for anyone needing to transport, lift, or process logs, as underestimating the weight can be a significant safety hazard. It provides two key figures: Green Weight (for freshly felled trees with high moisture content) and Dry Weight (for seasoned wood), which is considerably lighter.

Common Wood Species & Their Properties

Wood Species	Avg. Dry Density (lb/ft³)	Common Uses	Hardness
Pine (Eastern White)	25	Construction lumber, furniture, carving	Soft
Oak (Red)	44	Flooring, furniture, cabinetry, barrels	Hard
Maple (Sugar)	44	Furniture, flooring, butcher blocks	Very Hard
Walnut (Black)	38	High-end furniture, gunstocks, veneer	Hard

How to Use the Log Weight Calculator

Log Diameter: Enter the average diameter of the log (measure at the center).
Log Length: Input the total length of the log.
Wood Species: Select the type of wood. Density varies greatly between species and determines the final weight.
Unit System: Choose between Imperial (inches, feet) and Metric (cm, meters) units.
Calculate: Get an instant estimate for both the green (wet) and seasoned (dry) weight of the log.

Log Weight vs. Diameter (Red Oak)

Based on a 10-foot long log

Frequently Asked Questions (FAQ)

Does this calculation account for the log tapering?

No, this calculator assumes the log is a perfect cylinder. For the most accurate result, measure the diameter at the middle of the log to get an average.

What if my wood species is not on the list?

The list contains common woods, but thousands of species exist. If yours is not listed, you can use an online resource to find the green and dry density of your wood and select the species with the most similar density from our list for a rough estimate.