1.1 Ω resistor colour code (1R1)
E24 series
1.1 Ω reads as Brown · Brown · Gold in bands. With ±5% it may sit anywhere from 1.0450000000000002 Ω to 1.1550000000000002 Ω.
Five bands
The first two bands are digits; the third is how many zeros follow. The gold band at the end is the ±5% tolerance.
- Value
- 1.1 Ω
- 4k7 notation
- 1R1
- Four bands
- Brown · Brown · Gold · Gold
- Five bands
- Brown · Brown · Black · Silver · Gold
- Multiplier
- ×10undefined
- Tolerance
- ±5%
- Actual range
- 1.0450000000000002 – 1.1550000000000002 Ω
- Series
- E24 series
Which end to start from · The tolerance band sits a little apart from the rest. Start from the crowded end. If you can see gold or silver, that band is the last one.
Same decade
The same twenty-four values repeat with a different number of zeros — 47 Ω, 470 Ω and 4.7 kΩ all start with the same two colours.
Nearby values
How to read this
- Colours are digits: black 0, brown 1, red 2, orange 3, yellow 4, green 5, blue 6, violet 7, grey 8, white 9.
- The third band counts the zeros. Yellow, violet, red means 47 with two zeros — 4.7 kΩ.
- A five-band resistor reads three digits, so its multiplier band drops by one step.
- The tolerance band sits slightly apart, which is how you know which end is the back.
Frequently asked questions
Q. What are the colour bands for 1.1 Ω?
Brown · Brown · Gold · Gold in four bands, or Brown · Brown · Black · Silver · Gold in five.
Q. How is 1.1 Ω read?
The first two digits are 11, followed by -1 zeros, giving 1.1 Ω. In short form, 1R1.
Q. What is the real value once tolerance is counted?
At ±5% it lies between 1.0450000000000002 Ω and 1.1550000000000002 Ω.
Q. Is 1.1 Ω a common value?
It belongs to E24. You will find it wherever the full E24 range is stocked.