Timber Volume & Price Calculator — logs & sawn timber
Enter the timber dimensions, then fill in any of the other fields — piece count, total volume, price, total cost/budget — leave the rest empty, and press Calculate. The summary shows every value, marking which you provided and which were computed. Examples: 16 pieces of 150 × 50 mm × 3.2 m at 65 EUR/m³ → total cost; or a 200 EUR budget + price → how many pieces you can buy; or count + total cost → the implied price per m³. Everything runs in your browser.
The formulas, exactly
Sawn timber is plain geometry: V = width × height × length per piece (150 × 50 mm × 3.2 m = 0.024 m³). For round logs, Huber's formula (the standard mid-diameter method in forest mensuration) is V = π/4 · d²mid · L, and Smalian's formula averages the two end cross-sections: V = π/8 · (d²1 + d²2) · L (both in Kershaw et al., Forest Mensuration). The solver links the fields with total = per-piece × count and cost = total × price, computing whatever you left blank: a target volume rounds the count up, a budget rounds it down (with the leftover shown), and count + cost back-solves the implied price. 1 m³ = 35.3147 ft³.
Sawn sizes are usually nominal — actual planed dimensions run a few mm smaller, which this page takes at face value. Round-log diameters are measured under bark; this computes solid geometric volume, not stacked (stere) volume.
Embed this calculator on your site
Marketplaces, timber yards, builders' merchants: the calculator is free to embed — no ads, no signup, works offline once loaded. Copy this snippet: