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