Surface Mount Device (SMD) Code Calculator

SMD Code

Enter the code printed on your SMD resistor

Calculate Value

How to Read SMD Resistor Codes

SMD resistors use a numerical marking system to indicate their resistance value:

3-Digit Code

• First two digits: Significant figures
• Third digit: Number of zeros to add
• Example: "103" = 10 × 10³ = 10,000Ω = 10kΩ

4-Digit Code

• First three digits: Significant figures
• Fourth digit: Number of zeros to add
• Example: "1002" = 100 × 10² = 10,000Ω = 10kΩ

Common SMD Codes

Code	Value
100	10 Ω
101	100 Ω
102	1 kΩ
103	10 kΩ
104	100 kΩ
105	1 MΩ