This calculator allows you to convert from Pound (troy or apothecary) to Quadrans (Biblical Roman) and in a reverse direction. To convert from Pound (troy or apothecary) to Quadrans (Biblical Roman), enter the amount of Pound (troy or apothecary) into the first input and to convert from Quadrans (Biblical Roman) to Pound (troy or apothecary), enter the amount of Quadrans (Biblical Roman) into the second input.