Resistor Color Code Calculator | Decode 4, 5 & 6-Band Values

Band 1 and 2 are the first two digits. Band 3 is the multiplier (10^n). Band 4 is the tolerance (gold=±5%, silver=±10%). For example, Yellow-Violet-Red-Gold = 4, 7, ×100, ±5% = 4,700Ω ±5%.

5-band resistors offer higher precision (1% or better). Bands 1, 2, and 3 are the first three digits, Band 4 is the multiplier, and Band 5 is tolerance. They are common in precision circuits.

Tolerance shows how much the actual resistance may vary from the labeled value. Gold = ±5%, Silver = ±10%, Brown = ±1%, Red = ±2%. A 1kΩ resistor with ±5% tolerance could measure anywhere from 950Ω to 1,050Ω.

SMD resistors use a 3- or 4-digit code. In 3-digit format: first two digits are significant figures, third digit is multiplier (10^n). For example, "472" = 47 × 10² = 4,700Ω. The EIA-96 format uses a 2-digit number and a letter multiplier. Use the SMD decoder mode in this calculator for instant results.

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