Kilopascals to pounds per square foot conversion calculator above calculates how many pounds per square foot are in 'X' kilopascals (where 'X' is the number of kilopascals to convert to pounds per square foot). In order to convert a value from kilopascals to pounds per square foot (from kPa to psf) simply type the number of kPa to be converted to psf and then click on the 'convert' button.