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Capacitance Converter

Convert capacitance units like farad, microfarad, nanofarad.

Convert Units

From:

To:

Result:

Convert capacitance measurements between different units including farad, microfarad, nanofarad, picofarad, and more.

What is Capacitance Converter?

Capacitance is a component's ability to store electric charge between two conductors separated by an insulator. Capacitors store energy in an electric field and release it instantly — used in everything from radio tuning to power supply filtering and camera flashes.

Understanding the Units

Farad (F)

The SI unit of capacitance. One farad stores one coulomb at one volt — an extremely large value; most practical capacitors are µF or smaller.

Common Uses: Supercapacitors, energy storage

Microfarad (µF)

One-millionth of a farad (10⁻⁶ F).

Common Uses: Power supply filtering, motor start capacitors

Conversion: 1 F = 1,000,000 µF

Nanofarad (nF)

One-billionth of a farad (10⁻⁹ F).

Common Uses: Signal coupling, general-purpose filtering

Conversion: 1 µF = 1,000 nF

Picofarad (pF)

One-trillionth of a farad (10⁻¹² F).

Common Uses: RF circuits, oscillators, small signal filtering

Conversion: 1 nF = 1,000 pF

Common Conversions

Small signal capacitor: 10–100 pF
Bypass/decoupling capacitor: 0.1 µF = 100 nF = 100,000 pF
Electrolytic capacitor (power supply): 100–10,000 µF
Supercapacitor (energy storage): 1–3,000 F

Conversion Formulas

Charge stored: Q = C × V (charge = capacitance × voltage)
Energy stored: E = ½ × C × V²
Series capacitors: 1/C_total = 1/C1 + 1/C2 ...
Parallel capacitors: C_total = C1 + C2 ...
Resonant frequency: f = 1 ÷ (2π × √(L × C))

Practical Examples

Camera flash capacitor: ~1,000 µF stores energy released in milliseconds

Computer CPU bypass capacitors: 0.1 µF to suppress switching noise

Radio tuning variable capacitor: 10–500 pF selects broadcast frequency

Supercapacitor (3V, 100F): can deliver ~10A for ~30 seconds

When to Use Each Unit

Picofarad (pF): RF circuits, oscillators, stray/parasitic capacitance

Nanofarad (nF): General-purpose signal filtering, coupling circuits

Microfarad (µF): Power supply decoupling, motor start/run capacitors

Farad (F): Supercapacitors, regenerative braking energy storage

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