Inches of mercury to kips per square inch conversion calculator shown above calculates how many kips per square inch are in 'X' inches of mercury (where 'X' is the number of inches of mercury to convert to kips per square inch). In order to convert a value from inches of mercury to kips per square inch (from inHg to ksi) simply type the number of inHg to be converted to ksi and then click on the 'convert' button.