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Free Resistor Color Code Calculator
Decode 4, 5, and 6-band resistors into resistance, tolerance, and temperature coefficient. Pick band colors and read the value instantly with a visual resistor.
Runs in your browserNo sign-up, no pop-upsNo login requiredFree forever
1 kΞ©
Β±5% tolerance
Range: 950 Ξ© β 1.05 kΞ©
Digit 1
Digit 2
Multiplier
Tolerance
π‘ Read bands from the end with the tolerance band (often gold or silver) on the right. 4-band resistors use two significant digits; 5- and 6-band use three for tighter precision.
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How It Works
1
Enter
Enter your text or data.
2
Process
Processed instantly in your browser. No server, no waiting.
3
Download
Save your result. Nothing is stored.
Why use ours?
βCompletely free β no hidden costs, ever
βNo account, email, or login required
βRuns entirely in your browser β no uploads
βWorks on any device β phone, tablet, desktop
βOpen and ad-supported, with no tracking
βLoads fast, with no installation needed
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