---
title: "Wood & Lumber Calculators"
description: "Free calculators for the timber trade: scale round logs with the Hoppus, Huber/Smalian/Newton and JAS rules, then convert volumes, board feet and prices between every common unit."
image: "https://nestingcalc.com/og-default.png"
url: "https://nestingcalc.com/wood/"
locale: "en"
---

# Wood & Lumber Calculators

Free calculators for the timber trade: scale round logs with the Hoppus, Huber/Smalian/Newton and JAS rules, then convert volumes, board feet and prices between every common unit.

## Log scaling

[

### Hoppus Volume Calculator (Quarter-Girth Rule)

Calculate Hoppus volume, true volume and Hoppus tons for round logs — free.

Read the guide →](https://nestingcalc.com/hoppus-calculator/)[

### Log Volume Calculator (Huber, Smalian, Newton)

Estimate the cubic volume of a log with Huber, Smalian or Newton — free.

Read the guide →](https://nestingcalc.com/log-volume-calculator/)[

### JAS Log Scale Calculator (Japanese Agricultural Standard)

Scale logs to the JAS rule with diameter rounding and ovality — free.

Read the guide →](https://nestingcalc.com/jas-log-scale-calculator/)

## Trade units & lumber

[

### Timber Unit Converter (m³, BF, MBF, Hoppus)

Convert between cubic metres, board feet, Hoppus units and prices — free.

Read the guide →](https://nestingcalc.com/timber-unit-converter/)[

### Board Feet Calculator

Calculate board feet, total volume and lumber cost for any board — free.

Read the guide →](https://nestingcalc.com/board-feet-calculator/)[

### Lumber Weight Calculator (kg/m³)

Weight of any board by species and size, dry or green — density table for 18 species included. Free.

Read the guide →](https://nestingcalc.com/lumber-weight-calculator/)[

### Firewood Calculator (cord, stere & m³)

Convert firewood volume between cord, stere/Raummeter, stacked m³ and loose m³ — plus weight by wood species. Free.

Read the guide →](https://nestingcalc.com/firewood-calculator/)

## Shipping & Logistics

[

### Green Log Weight Calculator

Weight of round timber at any moisture content, by species — Wood Handbook 2021 data.

Read the guide →](https://nestingcalc.com/log-weight-calculator/)[

### Stowage Factor Calculator

SF = volume ÷ tonnes — check timber parcels against IMO reference ranges.

Read the guide →](https://nestingcalc.com/stowage-factor-calculator/)[

### Container Loading Calculator

How many cartons fit before cube-out or weigh-out — 20GP, 40GP, 40HC.

Read the guide →](https://nestingcalc.com/container-loading-calculator/)

## Sawmilling

[

### Sawmill Recovery Calculator

Lumber recovery rate and log-rule overrun — benchmarked against FAO and EU data.

Read the guide →](https://nestingcalc.com/sawmill-recovery-calculator/)

## Kiln Drying

[

### Wood Moisture Content Calculator

MC, basis conversion and drying-outcome — Wood Handbook 2021 equations.

Read the guide →](https://nestingcalc.com/moisture-content-calculator/)[

### Wood Shrinkage Calculator

Tangential, radial and volumetric shrinkage by species — Wood Handbook 2021 Eq. 4-9.

Read the guide →](https://nestingcalc.com/wood-shrinkage-calculator/)[

### Wood EMC Calculator

Equilibrium moisture content from temperature and RH (Hailwood–Horrobin, Simpson 1973).

Read the guide →](https://nestingcalc.com/emc-calculator/)[

### Kiln Capacity Calculator

Wood volume per charge from stack size, board thickness and sticker thickness (AH-188).

Read the guide →](https://nestingcalc.com/kiln-capacity-calculator/)[

### Rough Sizing Calculator

Convert between finished (planed) and rough-sawn dimensions — before kiln drying.

Read the guide →](https://nestingcalc.com/rough-sizing-calculator/)

## Machining & finishing

[

### Plywood Cutting Calculator

Optimise plywood and panel sheet layouts with kerf, grain lock, edge banding and offcut reuse - the same engine as our sheet cutting calculator, preset for 2440 × 1220 mm panels.

Read the guide →](https://nestingcalc.com/plywood-cut-calculator/)[

### Manufacturing Yield Calculator

Chain sawing, drying, machining and finishing yields into one recovery figure - and see how much roundwood a target output really needs.

Read the guide →](https://nestingcalc.com/manufacturing-yield-calculator/)[

### Wood Glue Calculator

Adhesive quantity for edge gluing, panel lay-ups and face lamination from TDS spread rates in g/m², with waste allowance and cost.

Read the guide →](https://nestingcalc.com/wood-glue-calculator/)[

### Paint Coverage Calculator

Coating quantity for wood finishing from volume solids, dry film thickness and transfer efficiency - or straight from the data-sheet coverage.

Read the guide →](https://nestingcalc.com/paint-coverage-calculator/)[

### CBM Calculator

Carton volume in cubic metres for export shipments: per-line and total CBM, gross weight, and a cube-out / weigh-out check against a 40 HC container.

Read the guide →](https://nestingcalc.com/cbm-calculator/)[

### BOM Cost Calculator

Bill-of-materials costing for furniture: waste-inflated buy quantities, line and total costs, cost per product and a selling price from your target margin.

Read the guide →](https://nestingcalc.com/bom-calculator/)

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