SMD Resistor Code Calculator

⭐ SMD Resistor Calculator – read any resistor code in seconds ⭐

Tap in the code printed on the component and this SMD resistor calculator shows you the exact resistance value instantly. No ads, no sign-up, no detours.

► How it works

- Choose the code type in the bottom bar: 3-digit, 4-digit or EIA-96

- Tap the digits printed on your SMD resistor, column by column

- The value appears at the top right away in Ω, kΩ and MΩ

► SMD codes this calculator decodes

- 3-digit code – e.g. 103 → 10 kΩ

- 4-digit code – e.g. 1002 → 10 kΩ

- EIA-96 code with multiplier letter – e.g. 01C → 10 kΩ

- R notation for small values – e.g. 4R7 → 4.7 Ω

► Who this SMD calculator is for

- Electronics hobbyists, makers and DIY builders

- Repair technicians checking tiny SMD parts on a board

- Students and apprentices in electronics and electrical engineering

- PCB designers, prototypers and lab engineers

- Anyone who needs to identify an unlabelled SMD resistor fast

► Why this app

- Completely free

- No advertising

- Works offline – no internet connection needed

- No account, no registration

- Tiny download, opens instantly

- Light and dark mode

- Clean interface with zero distraction

► SMD resistor codes explained in short

Unlike through-hole parts with colour rings, an SMD resistor carries a short printed number code. On three- and four-digit codes the first digits are the value and the last digit is the number of zeros. The EIA-96 system instead uses two digits for the value and one letter as the multiplier – an SMD code like 01C simply cannot be read without a lookup table. That table is exactly what this SMD resistor calculator replaces: no code book, no datasheet search, no guessing.

Whether you are repairing a board, populating a prototype or checking a reel of parts, calculating an SMD resistor should take one second, not five minutes.

► Feedback

Is a code type missing or did something look wrong? Write to us – every message is read and the app keeps getting better.

Get the SMD Resistor Calculator and turn any SMD code into a resistance value instantly.