Kips per square inch to centimeters of water conversion calculator above calculates how many centimeters of water are in 'X' kips per square inch (where 'X' is the number of kips per square inch to convert to centimeters of water). In order to convert a value from kips per square inch to centimeters of water (from ksi to cmH2O) just type the number of ksi to be converted to cmH2O and then click on the 'convert' button.