Decode 4-band and 5-band resistor color codes with tolerance. This free tool by electronmagazine.com runs entirely in your browser — no sign-up, no uploads, no tracking of your input.
How to use
- Choose 4-band or 5-band.
- Select each band color from the dropdowns.
- Read the resistance and tolerance.
FAQ
Which band is first?
The band closest to one lead; the tolerance band (often gold) is usually last.
What is a 5-band resistor?
A precision resistor with three significant digits.
What does gold mean?
As a multiplier ×0.1, as tolerance ±5%.
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