This calculator allows you to convert from Scruple (apothecary) to Electron mass (rest) and in a reverse direction. To convert from Scruple (apothecary) to Electron mass (rest), enter the amount of Scruple (apothecary) into the first input and to convert from Electron mass (rest) to Scruple (apothecary), enter the amount of Electron mass (rest) into the second input.