Series Capacitor Calculator

Capacitors in series combine through a reciprocal sum, 1/Ct = 1/C1 + 1/C2, so the total always lands below the smallest member, while in parallel they simply add. Enter up to four values, each in picofarads through to farads, and the tool returns the combined capacitance in whichever engineering unit fits. Add an applied voltage and the series result also shows the volts across each capacitor, because charge is shared and V = Q/C puts the largest share on the smallest capacitance. That last figure is the one that matters in practice: in an unbalanced stack the small capacitor reaches its rating first, and everything here assumes ideal parts with no tolerance, leakage or ESR.