## Introduction: How to Read Color Codes From Resistors.

The value of the resistor is marked on the body using colors. Every color is different number and you can remember these numbers or you can just use the table on next step. OR there are much resistor calculators that you can use. It's for the laziest people :D . However it's your decision ,and I will show you all ways to calculate resistor value.

Here is the table with the colors and numbers. As you can see they are:

If you are too lazy to think about colors and digits and mat ... this is for you :) :D

Exemple: If first color is RED ,second is RED ,third is BLACK and the last is SILVER it means:

RED - 2 -- RED - 2 -- YELLOW - x10000 -- SILVER - 10% so...

2 2 0000 +/- 10% * 2 2 0000 so... :D

220000 +/- 22000

This is 220 000 Ohm or 220 kOhm

or 220 000 - 22 000 Ohm or 220 - 22 kOhm

or 220 000 + 22 000 Ohm or 220 + 22 kOhm

Hope you got it :)

Now some exercises :)

Try to calculate resistors' values from third and forth picture.

Answers are below.

The first one is : 11000 = 11k ohms

The second one is : 1000 = 1k ohms

The both are with gold color for the tolerance ,it means 5%.

It's your answer? I hope so :)

__Colors__Here is the table with the colors and numbers. As you can see they are:

**BLACK: 0****BROWN: 1****RED: 2****ORANGE: 3****YELLOW: 4****GREEN: 5****BLUE: 6****VIOLET: 7****GREY: 8****WHITE: 9**

**BLACK: 1****BROWN: 10****RED: 100****ORANGE: 1000****YELLOW: 10000****GREEN: 100000****BLUE: 1000000****GOLD: 0.1****SILVER: 0.01**

**BROWN: 1%****RED: 2%****GOLD: 5%****SILVER: 10%****NOTHING: 20%**

**Calculator****Resistor color code calculator**If you are too lazy to think about colors and digits and mat ... this is for you :) :D

**Examples**Exemple: If first color is RED ,second is RED ,third is BLACK and the last is SILVER it means:

RED - 2 -- RED - 2 -- YELLOW - x10000 -- SILVER - 10% so...

2 2 0000 +/- 10% * 2 2 0000 so... :D

220000 +/- 22000

This is 220 000 Ohm or 220 kOhm

or 220 000 - 22 000 Ohm or 220 - 22 kOhm

or 220 000 + 22 000 Ohm or 220 + 22 kOhm

Hope you got it :)

**Exercises**Now some exercises :)

Try to calculate resistors' values from third and forth picture.

Answers are below.

**Answers**The first one is : 11000 = 11k ohms

The second one is : 1000 = 1k ohms

The both are with gold color for the tolerance ,it means 5%.

It's your answer? I hope so :)

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## 22 Comments

In your example you give the color code -(red, red, black, silver)-

"it means: RED = 2, RED = 2, YELLOW=(x10000), SILVER = 10%"

Shouldn’t it be: red = 2, red = 2, BLACK = (x1), silver = +/-10%

22*1 = 22+/-10%

Ops .. :dd My fault .. ;d

ha ha ha

Anyone know a reverse resistor calculator?

im just already highschool but i dont understand!

difficult!

You mention that you read from left to right - but if you flip the resistor over, these directions are reveresed. How do I know which side is 'left' on a resistor?

The band with the metallic paint (Gold Silver etc.etc), is the 'right side' All other banding generally is done in block colour (Standardized colours used in electronics)

It's the closest band to end of the resistor.

Hey, I can answer that question for you, if you haven't found your answer quite yet. The tolerance band should be on the far right when you are looking at it. It could be Gold(5%) or Silver(10%). This means it should be xcolour, ycolour, zcolour and then your gold or silver tolerance band when you look at it. This way it is consistent and is facing the right way in order to measure the resistance when going to calculate it. As for putting your resistor in a circuit, well resistors are not polarized , therefore you can put them in any way. Good luck!