The calculation is a direct multiplication of volume and density.

1. Input Log Volume: Enter the log's total volume in cubic feet (ft³). You can get this from our Log Volume Calculator if needed.
2. Select Wood Species: Choose the species of the log from the dropdown menu. This selects the appropriate green wood density.
3. Calculate Weight: The calculator multiplies the volume by the species' density to find the total weight.
   Weight (lbs) = Volume (ft³) × Green Density (lbs/ft³)

Example 1: Red Oak Sawlog
A log measures 35 ft³ and is Red Oak (~63 lbs/ft³).
Weight: `35 × 63 ≈ 2,205` lbs — over a ton, so plan for a trailer rated well above that.

Example 2: White Pine Load
Four pine logs totaling 60 ft³ at ~45 lbs/ft³.
Weight: `60 × 45 = 2,700` lbs. Softwoods haul lighter per cubic foot than dense hardwoods like oak or hickory.

Example 3: Sizing a Log Arch
A single 12 ft³ hickory butt (~64 lbs/ft³) lands around `12 × 64 ≈ 768` lbs on one arm. Because hickory sits at the top of the density table, a small-but-dense log can load an axle almost as hard as a much larger pine log — volume alone never tells the whole story.

• Wrong Moisture Basis: Using air-dry density on a green log underestimates weight — the unsafe direction when sizing equipment.
• Mis-stating Volume: Carrying over an inflated cylinder volume (measured at the flare) directly inflates weight.
• No Safety Margin: Averaged species densities vary; treat the result as a floor, not a ceiling, and keep headroom on ratings.
• Forgetting Water Content Shifts: Rain or a season of drying changes weight far more than volume.

"I convert volume to weight before I pick a hitch, a chain, or a trailer. The number rarely surprises me going the other way — if you eyeball a wet oak butt log it always weighs more than people expect." — Equipment Operator

"When in doubt, weigh the heaviest realistic case: green density, bark on, full volume. That worst-case figure is what keeps a loading failure from becoming an accident. Log the number next to the load so the next driver trusts the same margin you did."

• Equipment Sizing: Match trailers, hitches, and slings to expected load weight.
• Hauling & Permits: Check loads against axle and gross-weight limits.
• Cost Estimating: Price jobs that are billed by tonnage.
• Biomass Sales: Convert volume inventory into the tonnage buyers purchase.

• Volume: The amount of three-dimensional space occupied by an object, in cubic feet.
• Density: The mass per unit of volume. For green logs, this is the weight of one cubic foot of freshly cut wood.
• Green Wood: Freshly cut wood that still contains a high percentage of its natural moisture.
• Moisture Content (MC): The weight of water in wood as a percentage of its oven-dry weight. Green logs often sit above 60% MC, which is what makes them so much heavier than dried lumber.
• Tonnage: Cargo expressed in tons. Many logging and biomass contracts are priced by the ton, so converting volume to weight is the first step in a quote.