4 bands
BrownBlackBrownGold
100 Ω · ±5% · 95 Ω–105 Ω
Common resistor value
100 Ω resistor color code
This finite reference shows exact four-band and five-band codes plus their tolerance ranges.
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Bands and exact resistance
100 Ω codes
The four-band example uses ±5%; the five-band example uses ±1%. Both are calculated without rounding.
5 bands
BrownBlackBlackBlackBrown
100 Ω · ±1% · 99 Ω–101 Ω