Volume ConverterTimber Volume Unit Converter
Convert timber volumes between cubic metres, cubic feet (CFT), board feet, Hoppus feet, cubic inches and litres. Essential for trading, quoting and importing across international and Indian timber standards.
Why this calculation matters
Unit basis decides every downstream number. A price per CFT and a price per m³ can look 35× apart and be identical.
Volume Converter
Timber Volume Unit Converter
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About Volume Converter
The timber trade uses several different volume units depending on country and context - cubic metres in most of the world, cubic feet (CFT) in Indian markets, board feet in the US and Indian sawmills, and Hoppus feet for round logs in the UK and Commonwealth. This converter instantly translates between all of them so you can quote, buy and sell across any standard without errors. The conversions traders type into Google all day — CFT to cubic metre, board feet to CFT — are one dropdown away here.
Where Is This Used?
Formulas & Conversion Factors
1 Cubic Foot (CFT) = 0.0283168 m31 Board Foot (BF) = 144 cubic inches = 0.00235974 m31 Hoppus Foot = 1.273 cubic feet = 0.0360541 m3Conversion = (Amount x From_factor) / To_factor1 m3 = 35.3147 CFT = 423.78 Board FeetHow the calculation works
Whatever unit you enter is first turned into cubic metres, then out again into the unit you asked for. Cubic metres are used as the common step so any pair of units can be converted without a separate rule for each combination.
Show the formula
All units convert through cubic metres as the pivot: value x factor(from) = m3, then m3 / factor(to) = result. Factors used: 1 m3 = 1; 1 cubic foot = 0.0283168 m3; 1 board foot = 0.00235974 m3; 1 Hoppus foot = 0.0360541 m3; 1 cubic inch = 0.0000163871 m3; 1 litre = 0.001 m3.Hoppus is a trade measure that already deducts approximately 21% of true round volume. Converting between Hoppus and true volume changes the quantity, not just the unit.
References and what each one provides
- Indian Timber Trade practiceTrade convention, IndiaHoppus measure, CFT quotation practice and customary allowances used in Indian timber trading.
Unverified values are marked as such rather than presented as sourced.
Limitations of this calculation
Converts between volume units only. It does not account for sawing loss, drying shrinkage, grade recovery, or the difference between nominal and actual dimensions of sawn stock.
Do not use this for Contractual volume settlement. Agree the measurement basis with the counterparty before shipment.
Figures are engineering estimates from the inputs and assumptions shown. Verify against the actual material and, where the result affects structure or safety, against a qualified professional.
- 1 m³ = 35.3146667 CFT = 423.776 board feet = 35.3147 Hoppus ft (unit definitions)
Formula checked against the sources above by an automated regression test (tests/test-calculators.js) that derives each expected value independently of this page. Last reviewed .
How to use this tool
- Enter the trade details below, then press Calculate.
- Fill in amount.
- Press Calculate.
Worked example
Common mistakes to avoid
- Rounding too early. Convert first, round at the end — early rounding compounds into real money on big lots.
- Confusing CFT (cubic feet) with the Hoppus foot. Hoppus volume is about 21.5% less than true volume.
- Treating 1 CBM as 424 board feet in every context. That is sawn-volume maths; log rules give different answers.
Frequently Asked Questions
Wood species data
Density, hardness and movement for 60 timbers