Pounds per cubic foot to tonnes per cubic meter converter on this page calculates how many tonnes per cubic meter are in 'X' pounds per cubic foot (where 'X' is the number of pounds per cubic foot to convert to tonnes per cubic meter). In order to convert a value from pounds per cubic foot to tonnes per cubic meter (from lb/cu ft to t/m³) type the number of lb/cu ft to be converted to t/m³ and then click on the 'convert' button.