Gigapascals to newtons per square meter conversion calculator above calculates how many newtons per square meter are in 'X' gigapascals (where 'X' is the number of gigapascals to convert to newtons per square meter). In order to convert a value from gigapascals to newtons per square meter (from GPa to N/m²) simply type the number of GPa to be converted to N/m² and then click on the 'convert' button.