Resistor Color-Band Decoder

Read a 4-band or 5-band resistor color code into ohms, with tolerance and ppm/K.

Band 1 (digit)Band 2 (digit)Band 3 (digit or multiplier)

Band 4 (multiplier)Band 5 (tolerance, optional)Band 6 (TC ppm/K, optional)

Result

Resistance

10.2 Ω

In kiloohms

0.0102 kΩ

Tolerance

±2%

Range

9.996 – 10.404 Ω

About this tool

Pick up to six color bands and see the resistance value, tolerance, and temperature coefficient for carbon film, metal film, and precision resistors. A direct answer to the recurring r/AskElectronics and r/electronics 'what resistor is brown black red gold' threads.

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