SMD Resistor Code Calculator

SMD Resistor Code Calculator app you to quickly decode and identify SMD resistor values with a simple, accurate calculator designed for electronics technicians, engineers, students, hobbyists and repair professionals.

Whether you're reading a tiny resistor marking from a PCB or trying to find the correct SMD code for a resistance value, this app gives you the answer in seconds.

Key Features :

🔢 3-Digit SMD Codes

Decode standard 3-digit resistor markings, including R and M decimal formats and milliohm values.

🔢 4-Digit SMD Codes

Calculate and decode 4-digit precision resistor markings with support for R decimal notation.

📊 EIA-96 (1%)

Decode EIA-96 resistor markings using the 01–96 number system and multiplier letters.

⚡ A11 Codes — 2%, 5% & 10%

Work with A11 resistor codes using the letter + number format for common tolerance ranges.

🔍 Auto Detect

Enter an SMD marking and let the app automatically identify the appropriate code format.

⌨️ Direct Code Input

Manually enter resistor markings to quickly calculate their resistance value.

🔄 Reverse Calculator

Enter a resistance value and find possible SMD resistor codes that can represent it.

📜 History

Keep track of previously calculated resistor values for quick reference.

⭐ Favorites

Save frequently used results for easy access later.

🎨 Light & Dark Theme

Choose Light, Dark, or System theme according to your preference.

Useful for :

Electronics repair

PCB troubleshooting

SMD component identification

Circuit design

Electrical & electronics engineering

Electronics students

Technicians and hobbyists

Resistor selection and replacement

SMD Resistor Code Calculator is built to make SMD resistor identification faster, easier, and more convenient—without complicated tables or manual calculations.

Download now and decode SMD resistor markings in seconds.