Tree log weight calculator

This calculator helps estimate the weight of a tree log based on its dimensions and species. It's useful for forestry management, firewood preparation, and other applications.

Input Parameters

Calculation Results

Estimated Log Weight

-- kg --

Calculation Formula:
Weight (kg) = π × (Diameter²/4) × Length × Density

Where:
π = 3.14159
Diameter = Log diameter (inches)
Length = Log length (feet) × 0.3048 (to convert to meters)
Density = Species-specific density (kg/m³)

Species Density Information

Approximate densities (kg/m³):
- Oak: 720
- Pine: 380
- Maple: 670
- Aspen: 370
- Birch: 430
- Other: Please specify above

Tree log weight calculator Calculator Usage Guide

Learn how to use the Tree log weight calculator and its working principles

How to Use This Calculator

  1. Enter the length of your log in feet.
  2. Measure and enter the diameter of the log in inches (measured at the thickest part).
  3. Select the species of wood from the dropdown menu. If your species isn't listed, select "Other" and enter the species name.
  4. Click the "Calculate" button to estimate the weight.

Understanding the Results

The calculator provides an estimated weight of the log in kilograms. This is based on standard densities for each wood species. Keep in mind that actual weights may vary based on factors like moisture content, specific growing conditions, and exact species variations.

Principle Behind the Calculation

The calculator uses the formula: Weight = π × (Diameter²/4) × Length × Density

This formula calculates the volume of the log (assuming it's perfectly cylindrical) and then multiplies by the density of the specific wood species to determine the weight.

Practical Applications

  • Estimating firewood supply
  • Planning timber harvests
  • Calculating transportation requirements
  • Comparing different wood species for construction projects

Important Notes

For more accurate results, especially for commercial applications, consider these factors:

  • Wood density increases as moisture content decreases
  • Knots and defects in the wood can affect weight
  • Green wood (recently cut) is heavier than seasoned wood
  • These calculations provide estimates - actual weights may vary