What density values are used for each wood species?

Pine: 500 kg/m³, Oak: 700 kg/m³, Birch: 650 kg/m³, Mahogany: 550 kg/m³, Teak: 630 kg/m³, Walnut: 640 kg/m³, Cherry: 580 kg/m³, Maple: 720 kg/m³. These are industry-standard nominal air-dry densities at approximately 12% moisture content.

What is the formula used?

Weight = (π/4) × D² × L × ρ, where D is diameter in meters, L is length in meters, and ρ is the wood density in kg/m³. Inputs in mm are converted to meters before calculation.

Why does the result differ from my actual wood piece?

Wood density varies with moisture content, grain direction, and growth conditions. The densities used here are nominal values for air-dry timber. Green (freshly cut) wood can be 20–50% heavier.

Can I use this for hollow wooden tubes?

No — this calculator is for solid round bars only. For hollow tubes, calculate weight for the outer diameter bar, then subtract the weight of a solid bar with the inner diameter.

Does this tool store any data?

No. All calculations run entirely in your browser. No data is sent to any server.

Wood Round Bar Weight Calculator

Enter the diameter and length of a solid wooden round bar and select a wood species to instantly calculate its weight in kg and grams.

Bar Dimensions

Diameter (mm)

Length (mm)

Wood Species

Enter dimensions on the left and click Calculate.

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Summary

Enter the diameter and length of a solid wooden round bar and select a wood species to instantly calculate its weight in kg and grams.

How it works

Enter the diameter of the wooden round bar in millimeters.
Enter the length of the bar in millimeters.
Select the wood species from the dropdown — the density is pre-filled automatically.
Click Calculate Weight to run the computation.
The result displays weight in kilograms and grams, plus a full calculation breakdown.

Use cases

Estimate the weight of turned wooden dowels or spindles for furniture projects.
Calculate shipping weight for bulk timber rod orders.
Compare how different wood species affect the mass of a component.
Structural and load calculations for wooden columns or support elements.
Woodworking project planning and material cost estimation.
Education in materials science and timber engineering courses.

Frequently Asked Questions

Last updated: 2026-09-19 · Reviewed by Nham Vu