Capacitance Converter

Convert capacitance values among common SI, metric and customary units. Capacitance measures stored electric charge per volt. Common component values use micro-, nano- and picofarads.

ValueEnter zero or a positive value; scientific notation is accepted.Convert fromFarad (F)Millifarad (mF)Microfarad (µF)Nanofarad (nF)Picofarad (pF)Convert toFarad (F)Millifarad (mF)Microfarad (µF)Nanofarad (nF)Picofarad (pF)

Convert

Converted value0.1 µF

SI-base value1e-7 F

Multiply by0.001

The displayed results apply to the default example. Enable JavaScript to convert other values.

How to use this converter

1. Enter the capacitance value.
2. Select its current unit and the unit you want.
3. Select Convert. The page shows the converted value, the SI-base value and the direct multiplication factor.

Conversion formula

Converted value = entered value × source-to-SI factor ÷ target-to-SI factor.

Every option is represented by its factor to farad (F). This one-base method keeps reciprocal conversions consistent. Calculations run in your browser, and old results are hidden when an input changes or validation fails.

Worked example

Convert 100 nF to µF. Multiply by 0.001; the result is 0.1 µF. The same input equals 1e-7 F in the SI-base unit.

Accuracy and limitations

Real capacitors have tolerance, voltage limits, leakage, equivalent series resistance and frequency dependence. Discharge capacitors safely before handling.

The calculator retains more digits internally than it displays. Round the final value to the precision supported by your measurement. Very large and very small answers may use scientific notation.

Frequently asked questions

How many picofarads are in one nanofarad?

One nanofarad equals 1,000 picofarads.

Can I reverse the conversion?

Yes. Swap the From and To selections. Because both units use the same SI base, the reverse factor is the reciprocal of the forward factor.

Why was my entry rejected?

Use digits with an optional decimal point or scientific notation. Blank values, commas, fractions, words and non-finite entries are rejected. Negative values are rejected because this converter treats the quantity as a magnitude.

Review notes and sources

Reviewed October 4, 2026. The conversion factors, default example, zero or signed boundary behavior, invalid-input handling and recovery after an error were checked. Factors follow SI definitions and published conversion guidance from the NIST Guide to the SI and the BIPM SI Brochure. Explanations and examples are original.

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