Zener Diode Calculator Enter value and click on calculate. Relevant results will appear at the bottom.Maximum Input = Max supply to the zener.Minimum Input = Lowest possible supply to the zener, which cannot be lower than the preferred output voltage...Enter the selected values:Maximum Input Voltage: VoltsMinimum Input Voltage: VoltsOutput Voltage: VoltsLoad Current: MAmperes Results:Resistance: Ohms Watts Zener: Volts Watts