Resistance to Color Band Calculator
Enter a resistance value to see the matching color band combination.
Category: Life Tools
When to use?
Find the color band pattern for a target resistance before selecting components.
How to use
- Enter resistance value and unit (Ω, kΩ, MΩ).
- Select band count (4/5) and tolerance.
- See the color band combination.
Input Explanation
Enter the target resistance value, unit (Ω/kΩ/MΩ), and the number of bands.
Calculation Basis
Deconstructs the numerical value into significant digits and multiplier power, then maps them to the corresponding standard EIA colors.
Usage Examples
- Part identification - Know the color pattern to pick the right resistor.
- Learning - Understand the color code system in reverse.
Examples
- Input '10 kΩ' with 4-band option to get 'Brown-Black-Orange-Gold' color bands
- Input '220 Ω' with 5-band option to verify 'Red-Red-Black-Black-Brown' color bands
Cautions
- If the input resistance does not exist in standard E-series (E24, E96, etc.), the tool will display the color bands for the closest nominal production value.
FAQ
Does any value work?
Only values expressible as 2–3 significant digits × power of 10 can be represented as color bands.
Do 4-band and 5-band give different results?
Yes — 5-band uses 3 significant digits for finer resolution.
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