Compute total equivalent capacitance, voltage division, stored charge and energy for any number of series capacitors. Upload CSV for batch processing — free, no signup.
⚡ Calculate Now ↓| # | Capacitors (µF) | C_total (µF) | Applied V | Voltage per Cap (V) | Charge (µC) | Energy (mJ) | Status |
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When capacitors are connected in series, the total (equivalent) capacitance decreases, but the voltage handling capability increases. The fundamental formula is 1/C_total = 1/C₁ + 1/C₂ + … + 1/Cₙ. For two capacitors, it simplifies to C_total = (C₁ × C₂)/(C₁ + C₂). This behavior is opposite to resistors in series. Series capacitors are essential in high-voltage applications like power supplies, voltage multipliers, and filter banks where each capacitor shares the total voltage inversely proportional to its capacitance. For example, three 10µF capacitors in series yield C_total ≈ 3.33µF, and if a 30V supply is applied, each ideally drops 10V. Our advanced calculator also computes stored charge (Q = C_total × V) and energy (E = ½ × C_total × V²). Use bulk mode to analyze dozens of capacitor combinations instantly. Whether you're designing a snubber, resonant circuit, or voltage divider, this tool ensures accurate results with real-time validation. The calculator supports auto-detection of µF, nF, pF suffixes and provides voltage sharing list. Optimize your design with precise series capacitance metrics.
Supports any number of series capacitors, from 2 to 100 entries per network.
Optional total voltage → shows voltage across each cap, charge, and stored energy.
Parse µF/nF/pF, error alerts, live preview of total capacitance before calculation.