Ounces-force to meganewtons conversion calculator shown above calculates how many meganewtons are in 'X' ounces-force (where 'X' is the number of ounces-force to convert to meganewtons). In order to convert a value from ounces-force to meganewtons (from ozf to MN) type the number of ozf to be converted to MN and then click on the 'convert' button.