Text tool

SMD Resistor Decoder

Decode common three/four-digit, R-decimal and EIA-96 resistor markings.

In-browser processingNo account requiredPrivacy details ↗

Numeric 3/4 digits: last digit is multiplier; all zeros mean 0 Ω. R replaces the decimal point in 3/4-character codes. EIA-96 uses 01–96 and Z/Y/X/A/B/C/D/E/F; X/S=0.1, Y/R=0.01 aliases. Select the format explicitly. Nominal resistance only; no tolerance, rating or proprietary-code inference.

R(Ω) = AB × 10^C / ABC × 10^D; R → .; EIA-96: R = T × M

Supported EIA-96 domain table

Letter multipliers: Z = 0.001; Y = 0.01; R = 0.01; X = 0.1; S = 0.1; A = 1; B = 10; C = 100; D = 1000; E = 10000; F = 100000

CodeBase valueCodeBase valueCodeBase valueCodeBase value
01100251784931673562
02102261825032474576
03105271875133275590
04107281915234076604
05110291965334877619
06113302005435778634
07115312055536579649
08118322105637480665
09121332155738381681
10124342215839282698
11127352265940283715
12130362326041284732
13133372376142285750
14137382436243286768
15140392496344287787
16143402556445388806
17147412616546489825
18150422676647590845
19154432746748791866
20158442806849992887
21162452876951193909
22165462947052394931
23169473017153695953
24174483097254996976

A QUICK WALKTHROUGH

How to use this tool

  1. Choose the mode and enter the values.
  2. Read the formula and limitations before interpreting the result.

Formula and limits

Numeric 3/4 digits: last digit is multiplier; all zeros mean 0 Ω. R replaces the decimal point in 3/4-character codes. EIA-96 uses 01–96 and Z/Y/X/A/B/C/D/E/F; X/S=0.1, Y/R=0.01 aliases. Select the format explicitly. Nominal resistance only; no tolerance, rating or proprietary-code inference. R(Ω) = AB × 10^C / ABC × 10^D; R → .; EIA-96: R = T × M

GOOD TO KNOW

Common questions

Does this evaluate a real component or circuit?

No. This is a nominal calculation from the inputs, not component selection or a safety assessment.