Pascals to newtons per square millimeter converter on this page calculates how many newtons per square millimeter are in 'X' pascals (where 'X' is the number of pascals to convert to newtons per square millimeter). In order to convert a value from pascals to newtons per square millimeter (from Pa to N/mm²) simply type the number of Pa to be converted to N/mm² and then click on the 'convert' button.