Hectopascals to pounds per square inch converter on this page calculates how many pounds per square inch are in 'X' hectopascals (where 'X' is the number of hectopascals to convert to pounds per square inch). In order to convert a value from hectopascals to pounds per square inch (from hPa to psi) simply type the number of hPa to be converted to psi and then click on the 'convert' button.