Since carbon resistor is small in size which make more difficult to write the value of resistance on it. For that reason, a idea grow that is use color code on it. Resistor color code is a mixing of color on a resistor which gives the value of resistance of resistor. The value of resistance won't be exact with this method i.e. slightly less or higher than that value. Resistor color code calculator is engineering calculator which is used to calculate the resistance of a resistor by using code on it. Our motive is to make easy for all electrician, & engineer in this type of calculation i.e. no worry to remember anything at all about it. 

Resistor Color Code Calculator

There are different types of band resistor which has different color coding. Band resistor means how many color is coated on resistor i,e. 4 band resistor means 4 colors are coated on that resistor and 5 band resistor means 5 types of color are coated.

1. 4 Band resistor color code calculator

Choose first color Black Brown Red Orange Yellow Green Blue Violet Grey White   

Choose Second color Black Brown Red Orange Yellow Green Blue Violet Grey White   

Choose third color Black Brown Red Orange Yellow Green Blue Violet Gold Silver Gold Silver    

Choose third color Gold Silver No color

2. 5 Band resistor color code calculator

Choose first color Black Brown Red Orange Yellow Green Blue Violet Grey White   

Choose Second color Black Brown Red Orange Yellow Green Blue Violet Grey White   

Choose third color Black Brown Red Orange Yellow Green Blue Violet Grey White

Choose fourth color Black Brown Red Orange Yellow Green Blue Violet Gold Silver Gold Silver    

Choose fifth color Gold Silver No color

For resistor color code calculation

For resistor color code calculation, we have a formula for both 4 band resistor and 5 band resistor.

For 4 band resistor, 

The value of  R = AB X 10^C ± D% 

where A = First color (band)

           B = Second color (band)

           C = Third color (band) = Multiplier

           D = Fourth color (band) = Tolerance

For 5 band resistor, 

The value of  R = ABC X 10^D ± E% 

where A = First color (band)

           B = Second color (band)

           C = Third color (band) 

           D = Fourth color (band) = Multiplier

           E = Fifth color (band) = Tolerance

Note :- To remember all color code, we have a sentence which makes easy to remember.

BBROY lives in the Great Britain has a Very Good Wife.

Resistor color code table

Color	Digit	Multiplier	Tolerance
Black	0	10⁰	-
Brown	1	10¹	-
Red	2	10²	-
Orange	3	10³	-
Yellow	4	10⁴	-
Green	5	10⁵	-
Blue	6	10⁶	-
Violet	7	10⁷	-
Grey	8	-	-
White	9	-	-
Gold	-	0.1	±5%
Silver	-	0.01	±10%
No color	-	-	±20%