Capacitors in Series

The Capacitors in Series calculator computes the net capacitance of two capacitors in series.

INSTRUCTIONS: Choose units and enter the following:

• (C₁) Capacitance of First Capacitor
• (C₂) Capacitance of Second Capacitor

Net Capacitance (C_net): The calculator returns the capacitance in farads.  However, this can be automatically change to compatible units via the pull-down menu.

The Math / Science

The Capacitors in Series calculator computes the effective capacitance of two capacitors in series assuming that the resistance of the connection wire is negligible.  For more information on Capacitors, in series or in general, please see Capacitors.

The formula for net capacitance of two capacitors in series is:

C_net = `1 / ( 1/(C1) + 1/(C2) )`

where:

• C_net = Capacitance of capacitors in series
• C₁ = Capacitance of first capacitor
• C₂ = Capacitance of second capacitor

Capacitor Calculators

• Charge from Capacitance and Voltage (q = C⋅V)
• Capacitance from Charge and Voltage (C= q/V)
• Voltage from Capacitance and Charge (V = q/C)
• Capacitors in Series
• Capacitors in Parallel

1. ^ Walker, Jearl, David Halliday, and Robert Resnick. "Capacitance." Fundamentals of Physics. 8E ed. Hoboken, NJ: Wiley, 2008. 663. Print.