In the E12 series each succeeding resistor falls within the -/+ 10 % of the previous value. Until fairly recently, 10% tolerance resistors were the norm, but today, 5% (E24) resistors seem to be the most commonly used. They still can be found in vintage radios, old amplifiers, etc., but the price of a 5% resistor is low enough to be the standard component in all of today's electronic circuits.
In precision applications, special, more expensive low-tolerance resistors are used with tolerance ratings of 2%, 1% or less.
Common values for E12, 10% series resistors:
.1Ω, .12Ω, .15Ω, .18Ω, .22Ω, .27Ω, .33Ω, .39Ω, .47Ω, .56Ω, .68Ω, .82Ω - 0.1Ω to 0.82Ω...
1Ω, 1.2Ω, 1.5Ω, 1.8Ω, 2.2Ω, 2.7Ω, 3.3Ω, 3.9Ω, 4.7Ω, 5.6Ω, 6.8Ω, 8.2Ω - 1ohm to 8.2ohm...
10Ω, 12Ω, 15Ω, 18Ω, 22Ω, 27Ω, 33Ω, 39Ω, 47Ω, 56Ω, 68Ω, 82Ω - 10ohm to 82ohm...
100Ω, 120Ω, 150Ω, 180Ω, 220Ω, 270Ω, 330Ω, 390Ω, 470Ω, 560Ω, 680Ω, 820Ω- 100Ω-820Ω
1k, 1.2k, 1.5k, 1.8k, 2.2k, 2.7k, 3.3k, 3.9k, 4.7k, 5.6k, 6.8k, 8.2k - 1k to 8.2k resistors...
10k, 12k, 15k, 18k, 22k, 27k, 33k, 39k, 47k, 56k, 68k, 82k - 10k to 82k resistors...
100k, 120k, 150k, 180k, 220k, 270k, 330k, 390k, 470k, 560k, 680k, 820k - 100k to 820k...
1M, 1.2M, 1.5M, 1.8M, 2.2M, 2.7M, 3.3M, 3.9M, 4.7M, 5.6M, 6.8M, 8.2M - 1M to 8.2M...
10M, 12M, 15M, 18M, 22M, 27M, 33M, 39M, 47M, 56M, 68M, 82M
100M, 120M, 150M, 180M, 220M, 270M, 330M, 390M, 470M, 560M, 680M, 820M
|Brown, black, silver, silver |
0.1 ohm resistor (10%)
|Red, red, silver, silver |
0.22 ohm resistor (10%)
|Brown, black, green, silver |
1Mohm resistor (10%)
|Brown, black, blue, silver |
10Mohm resistor (10%)
|Yellow, violet, green, silver |
4.7Mohm resistor (10%)
See more E12 (10%) examples:
0.1Ω to 0.82Ω resistors
1Ω to 8.2Ω resistors
10Ω to 82Ω resistors
100Ω to 820Ω resistors
1k to 8.2k resistors
10k to 82k resistors
100k to 820k resistors
1M to 8.2M resistors
Tip: Use our 4 and 5 band resistor color code calculator for a simple and easy way to determine the value of your color-coded resistors.