This calculator allows you to convert from Newton/square millimeter to Ton-force (short)/sq. inch and in a reverse direction. To convert from Newton/square millimeter to Ton-force (short)/sq. inch, enter the amount of Newton/square millimeter into the first input and to convert from Ton-force (short)/sq. inch to Newton/square millimeter, enter the amount of Ton-force (short)/sq. inch into the second input.