NESS ENGINEERING
TECHNICAL DATA
RESISTOR COLOR CODES

The graphical calculator below has been provided below as a tool to determine the resistance of a resistor based on the observed color code. Conversely, if one knows the resistance, the calculator can also determine the proper color code for the desired resistor.

In order to use the calculator to determine resistance, merely use the pull-down menus above the displayed resistor to select the observed color bands on the resistor. To determine the color code, enter in the resistance value and use the pull-down menus below the resistor to select the multipler and tolerance.

A table is also provided below the graphical calculator to show the correlation of color bands and numerical values.


resistance calculator

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Color

Significant Figures

Multiplier

Tolerance

Black

0

1

 

Brown

1

10

1%

Red

2

102

2%

Orange

3

103

 

Yellow

4

104

 

Green

5

105

 

Blue

6

106

 

Violet

7

107

 

Grey

8

108

 

White

9

109

 

Silver

 

10-2

10%

Gold

 

10-1

5%


Send consulting inquiries, comments, and suggestions to nessengr@san.rr.com

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Ness Engineering, Inc.
P.O. Box 261501
San Diego, CA 92196
(858) 566-2372
(858) 240-2299 FAX

Richard M. Ness and Ness Engineering, Inc.
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