- Select — Color bands.
- Calculate — Resistance, tolerance, and range.
Resistor Color Code Calculator
Decode resistor values from color bands.
Privacy
All calculations run in your browser.
Resistor Color Code Calculator — 4 & 5 Band Decoder
Free resistor color code calculator. Decode 4-band and 5-band resistors with visual preview — 100% client-side. 100% serverless.
🔒 100% Private
⚡ Completely Free
🌐 Runs in Browser
📦 Export Ready
⚡
Resistor Color Code Calculator — 4 & 5 Band Decoder
Tool Workspace
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Frequently Asked Questions
Does it support 5-band resistors?
Yes, both 4-band and 5-band.
Does it show the resistor visually?
Yes, with color stripes.
Is my data safe?
Yes. 100% in your browser.