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Resistor Color Code Calculator

Decode 4-band resistor color codes to find resistance and tolerance.

Band 1: Brown
Band 2: Black
Band 3: Red
Band 4: Gold
Resistance
1 kΩ
±5%
950 Ω – 1.05 kΩ
Color Code Reference
ColorDigitMultiplierTolerance
Black0×1—
Brown1×10±1%
Red2×100±2%
Orange3×1k—
Yellow4×10k—
Green5——
Blue6——
Violet7——
Grey8——
White9——
Gold—×0.1±5%
Silver—×0.01±10%