Hectopascals to newtons per square meter converter above calculates how many newtons per square meter are in 'X' hectopascals (where 'X' is the number of hectopascals to convert to newtons per square meter). In order to convert a value from hectopascals to newtons per square meter (from hPa to N/m²) type the number of hPa to be converted to N/m² and then click on the 'convert' button.