Resistor Calculator – Color Code and Value Calculator

Calculate resistor values from color codes and determine color codes from resistance values. Essential tool for electronics students and professionals.

Resistor Calculator – Color Code and Value Calculator

Calculate resistor values from color codes and determine color codes from resistance values. Essential tool for electronics students and professionals.

Type of calculation

First digit color band

Second digit color band

Multiplier color band

Tolerance color band

💡
24.00
W (power)

Ohm's Law: V = I × R | P = V × I

Understanding Resistor Color Codes

Resistor color codes provide a standardized way to indicate resistance values and tolerances. Each color represents a specific digit or multiplier value.

How to Use This Calculator

Follow these simple steps to get accurate results:

  1. Enter your calculation type
  2. Enter your first band color
  3. Enter your second band color
  4. Enter your multiplier band color
  5. Enter your tolerance band color
  6. Click the "Calculate" button to see your results
  7. Review the detailed breakdown and explanation

Why Use Our Resistor Calculator – Color Code and Value Calculator?

  • 100% free and no registration required
  • Instant, accurate calculations with professional formulas
  • Mobile-friendly design that works on any device
  • Privacy-focused - your data never leaves your browser
  • Educational content to help you understand the results

Frequently Asked Questions

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