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SMD Resistor Calculator
Decode an SMD Code
Tap the chip and type the markings printed on your resistor
← tap the markings to type →
Or build the code step by step:
Reverse Lookup
Know the resistance value? Find its possible SMD codes.
Quick reference:
• 3-digit (e.g. 103): first 2 digits = value, 3rd digit = ×10 multiplier
• 4-digit (e.g. 1002): first 3 digits = value, 4th digit = ×10 multiplier (higher precision)
• "R" notation (e.g. 4R7): R marks the decimal point → 4.7Ω
• EIA-96 (e.g. 01C): 2-digit code (01–96) + letter multiplier, used on 1% tolerance resistors
• 3-digit (e.g. 103): first 2 digits = value, 3rd digit = ×10 multiplier
• 4-digit (e.g. 1002): first 3 digits = value, 4th digit = ×10 multiplier (higher precision)
• "R" notation (e.g. 4R7): R marks the decimal point → 4.7Ω
• EIA-96 (e.g. 01C): 2-digit code (01–96) + letter multiplier, used on 1% tolerance resistors
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