Calculator Features

Multiple E-Series Support

Choose from standard resistor series:

  • E12 - 12 values per decade, ±10% tolerance
  • E24 - 24 values per decade, ±5% tolerance
  • E48 - 48 values per decade, ±2% tolerance
  • E96 - 96 values per decade, ±1% tolerance

Error Calculation

See the percentage difference between your desired value and standard values.

Exact Match Detection

Exact matches are highlighted in green for easy identification.

Comprehensive Database

Covers the full range of standard resistor values from 0.01Ω to 10MΩ.

Unit Conversion

Enter values in Ω, kΩ, or MΩ with automatic formatting of results.

Standard Resistor Values Calculator

12 values per decade, standard 10% tolerance
24 values per decade, standard 5% tolerance
48 values per decade, standard 2% tolerance
96 values per decade, standard 1% tolerance