This calculator allows you to convert from Pound-force/square foot to Foot water (4°C) and in a reverse direction. To convert from Pound-force/square foot to Foot water (4°C), enter the amount of Pound-force/square foot into the first input and to convert from Foot water (4°C) to Pound-force/square foot, enter the amount of Foot water (4°C) into the second input.