SMD Resistor Code Calculator

Decode 3-digit, 4-digit, R-notation and EIA-96 SMD resistor markings (e.g. 472, 1002, 4R7, 01C).

How to use the SMD Resistor Code Calculator

Enter or select: SMD code.
The results (Resistance, Coding system) are calculated instantly as you type.
Use “Copy link” to share the calculation with the same input values.

Formula

3-digit: AB × 10^C
4-digit: ABC × 10^D
EIA-96: value table × letter multiplier