Resistor Color Code Calculator

Calculate resistance from color bands (4 or 5 bands).

Resistance
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How to read Resistor Codes

Resistors use color bands to indicate their resistance value and tolerance. The logic differs slightly between 4-band and 5-band resistors.

  • 4-Band: 1st Digit, 2nd Digit, Multiplier, Tolerance.
  • 5-Band: 1st Digit, 2nd Digit, 3rd Digit, Multiplier, Tolerance.

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