Resistor Code Calculator

Resistor Code Calculator is the complete electronics toolkit for decoding resistor color bands, SMD codes, calculating Ohm's Law, designing LED circuits, and combining series/parallel resistor networks — all in one offline app. ★ FEATURES ★ ▸ RESISTOR COLOR CODE CALCULATOR Decode 4-band, 5-band, and 6-band resistors with a clear visual representation. Tap each band to change colors and instantly see the resistance value, tolerance, and temperature coefficient. ▸ REVERSE LOOKUP Enter any resistance value and instantly get the matching color bands. Perfect when you need to find or sort a specific resistor. ▸ SMD RESISTOR DECODER Decode SMD chip resistors in all common formats: - 3-digit code (e.g., 103 = 10kΩ) - 4-digit code (e.g., 1002 = 10kΩ) - EIA-96 precision code (e.g., 01A = 100Ω) - R-notation (e.g., 4R7 = 4.7Ω) ▸ OHM'S LAW CALCULATOR Calculate voltage (V), current (I), resistance (R), and power (P) from any two known values. Includes all six fundamental Ohm's Law formulas. ▸ LED RESISTOR CALCULATOR Find the perfect current-limiting resistor for your LED circuits: - Single, series, and parallel LED configurations - Preset LED types (red, yellow, green, blue, white, UV, IR) - Power dissipation calculation - Recommended power rating - Nearest E24 standard value ▸ SERIES & PARALLEL COMBINATIONS Combine up to 10 resistors in series or parallel. See the total resistance and the nearest standard E24 value. ▸ FAVORITES & HISTORY Save frequently used resistor values for quick access. Browse your calculation history. ▸ 10 LANGUAGES SUPPORTED English, Turkish, German, Spanish, French, Italian, Japanese, Brazilian Portuguese, Russian, Simplified Chinese. ★ WHO IT'S FOR ★ - Electronics hobbyists and makers - Arduino, Raspberry Pi, and DIY enthusiasts - Electrical engineering students - Professional engineers and technicians - Electricians and repair specialists - Teachers and educators ★ WHY THIS APP ★ ✓ 100% offline — no internet required ✓ No ads, no tracking, no data collection ✓ Clean, fast, modern interface ✓ Works on phones and tablets ✓ Material Design 3 Whether you're prototyping on a breadboard, repairing electronics, studying for an exam, or working on a professional project, Resistor Code Calculator gives you every resistor tool you need in one beautiful, lightning-fast app. Made with ♥ by deve.net