Enter any two values to find the third one:



About this calculator

Note that you can enter values in typical formats. Case is ignored.

  • For frequencies, '10k', '5KHZ','8MHz' and '1M' are all valid.
  • For resistors, '100R', '470r', '1k2','47k', '2M2', and '10M' are all valid.
  • For capacitors, '22p', '330p', '2n2', '10nF', '4.7u', '4u7', and '22uF' are all valid.

Since case is ignored, 'milli' prefixes will be interpreted as 'Mega'. This only really affects frequency.

A '1% resistor' usually means +/-1% tolerance. This calculator works this way. 10% is +/-10%.

Capacitors and Resistors are both limited to a 'typical' range; 10pF to <10000uF for caps, 1Ω to <100MΩ for resistors. Outside this range things will probably turn to nonsense.

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