Resistor Value Calculator

Electronics Engineering Tool

$1.00

Calculate resistor values from color bands, SMD codes, and LED circuits. Includes E-series reference tables and saved history. Resistor Value Calculator is a comprehensive electronics engineering tool for engineers, hobbyists, and students. Features: • Color Band to Value Calculator — supports 3, 4, 5, and 6-band resistors with real-time visualization and smart auto-sequence input. • Reverse Lookup — enter a resistance value to find matching color band combinations. • SMD Code Calculator — decode 3-digit, 4-digit, and EIA-96 SMD resistor codes. • LED Current-Limiting Resistor Calculator — compute the correct resistor for LEDs with series/parallel configurations and common LED presets. • Series/Parallel Network Calculator — calculate equivalent resistance for series and parallel resistor networks. • E-Series Standard Preferred Values Table — browse IEC 60063 E6 through E192 series with search. • Save and export resistor presets to CSV from local history. • Dark and light theme support. All calculations follow IEC 60063, EIA-96, and standard E24-E192 conventions. No account or login required — works entirely offline on your device.

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The developer, Sai Man Lau, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Seller
    Sai Man Lau
    Size
    9.6 MB
    Category
    Utilities
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2025 Resistor Value Calculator