Quotation tool
Dimension & Area Unit Converter
Convert drawing dimensions and measured areas before preparing a panel, floor deck or purlin enquiry.
Use a decimal point (.), without grouping separators or fractions. Example: 0.5.
Length and thickness
Area
Results show up to 12 significant digits and may use scientific notation. Keep the original drawing value, unit and tolerance alongside the converted value; conversion does not increase measurement accuracy.
Use the result in your enquiry
- State whether a dimension is overall width, effective coverage width, panel thickness or metal-face thickness.
- Keep drawing revisions, tolerances, cut lengths and quantities with their original units.
- An area conversion does not calculate panel quantities, laps, waste or structural capacity.
Conversion basis
- 1 in = 25.4 mm
- 1 ft = 0.3048 m
- 1 ft² = 0.09290304 m²
The foot used here is the international foot, not the U.S. survey foot. Area conversion uses the squared length factor.
Sources checked 9 October 2026