Last updated: March 2, 2026 by Maria Gonzalez

Resistor Color Code Calculator

Formula

Decode resistor color bands to find resistance and tolerance. Enter the digit values for each band and the multiplier to get the resistance in ohms with min/max tolerance range.

Common use cases:

  • Electronics prototyping
  • Circuit board repair
  • Electrical engineering education

Frequently Asked Questions

MG

Maria Gonzalez

Registered Dietitian, RD, MPH

Maria is a Registered Dietitian with a Master's in Public Health. She focuses on evidence-based nutrition assessment tools including BMI, calorie calculations, and body composition analysis.

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