Resistor Value Checker vs Resistor Color Code Calc +

Easily identify resistor values using resistor color bands, SMD resistor codes, and resistance calculators. Perfect for students, engineers, technicians, hobbyists, and electronics repair professionals. Resistor Value Checker helps you quickly decode resistor color codes and calculate resistance values with precision. Whether you work with 4-band, 5-band, or 6-band resistors, this app makes resistor identification simple and accurate. Features Resistor Color Code Calculator Decode 4-band resistors Decode 5-band resistors Decode 6-band resistors Instant resistance calculation Tolerance calculation support Use Resistor Value Checker to save time while working on electronic circuits, PCB repair, soldering projects, and electrical calculations.

▶ Decode any resistor in seconds. Tap the color bands on a big, clear resistor graphic and the value, tolerance and temperature coefficient update live — 4, 5 or 6 bands, with the nearest E24 or E96 standard shown too. ▶ Go the other way. Type a value like 4.7k and the app snaps it to the nearest standard part and paints the color bands back onto the resistor, with the error against your input. ▶ Everyday electronics math in one place. Ohm's law solves V, I, R or P from any two; the LED resistor tool sizes a series resistor from supply voltage, LED forward voltage and current. ▶ Read SMD codes fast. Enter a 3-digit, 4-digit, R-notation or EIA-96 code and get the value, plus series and parallel resistance helpers for quick combinations. ▶ Works fully offline with a clean history of your calculations. Share a result, switch languages, no account needed. Color names and values follow the standard IEC bands; always double-check critical parts against the printed markings and a meter. This is a reference and learning tool, not a substitute for measuring your actual components.