Freight Unit Converter
Convert common freight length, weight and volume units, including m³ to ft³, cm to inches and kg to pounds.
Unit conversion
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How it works
Choose a measurement category, then a source and target unit in that category. Length, weight and volume are separate physical quantities: a mass cannot be converted into a volume without additional information such as density.
The converter uses meters for length, kilograms for weight and cubic meters for volume as internal reference units. Every conversion passes through that reference, avoiding inconsistent formulas for individual unit pairs.
A tonne here is a metric tonne of 1,000 kg. Pounds and ounces are avoirdupois mass units. A liter is a metric volume unit. Short tons, long tons, fluid ounces and gallons are deliberately outside the available options.
Formula
Converted value = input value × source-to-canonical factor ÷ target-to-canonical factor
Inputs are normalized before calculation. Results are rounded for display.Worked example
1 m³ equals approximately 35.314667 ft³; 60 cm equals approximately 23.622047 in; 12 kg equals approximately 26.455471 lb. Display rounding does not change the conversion constants.
Limitations and assumptions
- Converting measurement units does not convert a carrier’s dimensional divisor automatically.
- Rounded displays should not be treated as more precise than the original measurement.
- Unit names such as ton or ounce can be ambiguous outside the explicitly supported definitions.
Read the calculation disclaimer before relying on an estimate for a shipment.
Frequently asked questions
Are inches and feet converted exactly?
The constants are exact: one inch is 0.0254 meters and one foot is 0.3048 meters. A decimal display may still be rounded.
What does the tonne option mean?
It means a metric tonne, exactly 1,000 kilograms. It is not a US short ton or an imperial long ton.
Can I convert cubic meters into kilograms?
Not with a unit conversion alone. You need the density of the material or a separately defined commercial weight-to-volume rule.