Resistor Color Code Calculator

Decode resistor color bands to find resistance value, tolerance range, and minimum/maximum resistance. Includes color code reference table.

Band 1 (1st Digit)

Band 2 (2nd Digit)

Band 3 (Multiplier)

Tolerance Band

Tab to move between fields

Resistance

4.7 kΩ

Tolerance5%

Min Resistance4,465 Ω

Max Resistance4,935 Ω

How to Use This Calculator

Select the color for each band: band 1 (first digit), band 2 (second digit), multiplier, and tolerance.
For 5-band resistors, also select a third significant digit band.
Review the decoded resistance value in ohms, tolerance (%), and min/max values.
Use the reverse lookup to find the color code for a resistance value you want to order.
The mnemonic 'Bad Boys Race Our Young Girls But Violet Generally Wins' helps remember the color order.

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