SMD Resistor Code Decoder

Decode 3-digit and 4-digit surface mount (SMD) resistor marking codes into resistance values.

Decoder Tool

Enter the code printed on the SMD resistor

Standard EIA-96 markings use 3 or 4 digits. The last digit is the multiplier (power of 10).

Standard Markings

3-Digit System (±5%)

First 2 digits are significant; 3rd is the multiplier.

Example: 103 = 10 × 10³ = 10,000Ω (10kΩ)

4-Digit System (±1%)

First 3 digits are significant; 4th is the multiplier.

Example: 4702 = 470 × 10² = 47,000Ω (47kΩ)

E-Series Tip:

If the code contains an "R", it acts as a decimal point. Example: 4R7 = 4.7Ω, R22 = 0.22Ω.

Common Values

103
10kΩ
472
4.7kΩ
104
100kΩ
221
220Ω
000
Link/0Ω
1002
10kΩ