This can be used to calculate the resistance in ohms of a resistor, given the color code, or to find the color code for a given amount of ohms.
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Resistor Color Code Calculator Help
Separate each color code by a space. For example, the pattern Green-Violet-Brown becomes 'Gn V Br'. You can enter a number of ohms or a color pattern; the script can distinguish the two automatically. Ohms should be entered as either a number like 85000 or as something like 5.6K or 8.7M.
Black = Bk
Brown = Br
Red = R
Orange = O
Yellow = Y
Green = Gn
Blue = Bl
Violet = V
Grey = Gy
White = W