This calculator allows you to convert from Femtopascal to Millimeter mercury (0°C) and in a reverse direction. To convert from Femtopascal to Millimeter mercury (0°C), enter the amount of Femtopascal into the first input and to convert from Millimeter mercury (0°C) to Femtopascal, enter the amount of Millimeter mercury (0°C) into the second input.