Capacitance Converter
Convert
Enter a value and pick the source and target units; the result updates live.
Capacitance is a component's ability to store energy in an electric field, measured in farads (F). A capacitor's value tells you how much charge it holds per volt (Q = C·V). Real capacitors are rarely measured in farads — they're in the µF, nF and pF range.
Converting between F, mF, µF, nF and pF is essential when reading capacitor codes (e.g. "103" = 10 nF), designing RC filters, or comparing a 100 µF electrolytic to a 100 pF ceramic. A single misplaced prefix changes the time constant by a factor of a million.
Common applications
Reading a capacitor's 3-digit code; sizing a decoupling cap in µF; selecting a coupling cap in nF; comparing film and ceramic values in pF.
Frequently asked questions
Capacitance is the ability to store energy in an electric field, measured in farads (F). C = Q/V.
It's 10 × 10³ pF = 10,000 pF = 10 nF. The first two digits are the mantissa, the third is the power of ten (in pF).
1 µF = 1000 nF. Multiply by 1000.