Capacitor Calculator

The Capacitor Calculator by AllCalculator is an easy-to-use online tool designed to solve all important capacitor equations instantly. Whether you want to find charge, capacitance, voltage, or stored energy, this powerful capacitance calculator saves time and avoids manual errors.You can also calculate the total capacitance of series and parallel capacitors, making it ideal for students, engineers, hobbyists, and anyone working with electronic circuits.

Capacitor Calculator

Calculate capacitance, charge, and energy

How to Use the Capacitor Calculator

Step by step:

  • Choose your calculation type, Charge, Capacitance, Voltage, Energy, Capacitors in Series, or Capacitors in Parallel.
  • Enter the required values in the boxes (Capacitance in µF, Voltage in V, Charge in µC, or Capacitor Values).
  • Click Calculate to get instant, accurate results, no manual math needed.

Example Calculations

Example 1: Calculate Charge (Q = CV)

If a capacitor of 10 µF is connected to a 12-volt source, what charge is stored?
Input: Capacitance = 10 µF, Voltage = 12 V
Formula: Q = C × V
Step-by-Step Solution:
Capacitance: 10 µF = 1.0E-5 F
Voltage: 12 V
Charge: Q = 1.0E-5 × 12 = 0.00012 C = 120 µC
Result: 120 µC (0.00012 C)

Example 2: Calculate Capacitance (C = Q / V)

A capacitor stores 45 µC when connected to 9 V. What is its capacitance?
Input: Voltage = 9 V, Charge = 45 µC
Formula: C = Q / V
Step-by-Step Solution:
Charge: 45 µC = 4.5E-5 C
Voltage: 9 V
Capacitance: C = 4.5E-5 / 9 = 5 µF
Result: 5 µF (5.0E-6 F)

Example 3: Calculate Voltage (V = Q / C)

A 22 µF capacitor stores 110 µC of charge. What voltage is applied?
Input: Capacitance = 22 µF, Charge = 110 µC
Formula: V = Q / C
Step-by-Step Solution:
Charge: 0.00011 C
Capacitance: 2.2E-5 F
Voltage: V = 0.00011 / 2.2E-5 = 5 V
Result: 5 V

Example 4: Calculate Energy (E = ½CV²)

Find the energy stored in a capacitor with 47 µF connected to 5 V.
Input: Capacitance = 47 µF, Voltage = 5 V
Formula: E = ½CV²
Step-by-Step Solution:
Capacitance: 4.7E-5 F
Voltage: 5 V
Energy: E = ½ × 4.7E-5 × 25 = 0.0005875 J = 0.588 mJ
Result: 0.588 mJ (0.000588 J)

Example 5: Capacitors in Series

Three capacitors of 10 µF, 22 µF, and 33 µF are connected in series.
Formula: 1/Ctotal = 1/C1 + 1/C2 + 1/C3
Step-by-Step Solution:
1/Ctotal = 1/10 + 1/22 + 1/33
1/Ctotal = 0.17576
Ctotal = 5.69 µF
Result: Total Capacitance = 5.69 µF

Example 6: Capacitors in Parallel

Three capacitors (4.7 µF, 6.8 µF, 10 µF) are connected in parallel.
Formula: Ctotal = C1 + C2 + C3
Step-by-Step Solution:
Ctotal = 4.7 + 6.8 + 10 = 21.5 µF
Result: Total Capacitance = 21.5 µF

Who Can Use the AllCalculator Capacitor Calculator?

  • Students: Understand formulas like Q = CV or E = ½CV² easily.
  • Electricians & Engineers: Instantly calculate charge, voltage, or total capacitance in series and parallel circuits.
  • Hobbyists & Makers: Test capacitor values in Arduino, Raspberry Pi, and DIY electronics projects.
  • Teachers: Demonstrate capacitor principles during lessons.
  • Repair Technicians: Troubleshoot capacitors in TVs, radios, and power circuits.
  • Research Labs: Perform complex capacitance calculations efficiently and accurately.

Why Use AllCalculator’s Capacitor Calculator?

  • Quick and accurate results every time.
  • Perform multiple capacitor calculations with one click.
  • Trusted series and parallel capacitor calculator for professionals and students.
  • Mobile-friendly and error-free on all devices.
  • Saves time and boosts accuracy in learning and circuit design.

Conclusion

The AllCalculator Capacitor Calculator is your complete digital tool for capacitance, charge, voltage, energy, and total capacitance calculations. Whether you’re a student learning basics or an engineer designing circuits, this capacitance calculator delivers fast, reliable, and accurate results every time. Try it now and simplify your capacitor calculations instantly.

FAQs About the Capacitor Calculator

Can I calculate both series and parallel capacitance values?

Yes! The AllCalculator parallel and series capacitor calculators let you quickly determine total capacitance by entering your capacitor values.

Can this tool calculate stored energy in a capacitor?

Absolutely. Select the energy stored in a capacitor calculator option, enter capacitance and voltage, and it will compute energy in joules instantly.

Is the Capacitor Calculator mobile-friendly?

Yes. The AllCalculator capacitor calculator is fully optimised for mobiles, tablets, and desktops.

Does this calculator explain the formulas used?

Yes. Each function displays the formula used — perfect for students who want to learn while calculating.

Can I calculate charge using this calculator?

Yes. The capacitor charge calculator instantly computes charge using Q = C × V and shows results in both coulombs and microcoulombs.