Kips per square inch to millipascals converter on this page calculates how many millipascals are in 'X' kips per square inch (where 'X' is the number of kips per square inch to convert to millipascals). In order to convert a value from kips per square inch to millipascals (from ksi to mPa) just type the number of ksi to be converted to mPa and then click on the 'convert' button.