Resistor Color Code Calculator

The resistor color code helps identify the value of resistors using colored bands. Each color corresponds to a specific digit, multiplier, or tolerance.

Formula:

R = (AB * 10^C) ± D%

Use the color chart to determine the values for A, B, C, and D.

Band 1 Color: Black (0)Brown (1)Red (2)Orange (3)Yellow (4)Green (5)Blue (6)Violet (7)Gray (8)White (9)

Band 2 Color: Black (0)Brown (1)Red (2)Orange (3)Yellow (4)Green (5)Blue (6)Violet (7)Gray (8)White (9)

Multiplier Color: Black (1)Brown (10)Red (100)Orange (1k)Yellow (10k)Green (100k)Blue (1M)Violet (10M)Gray (100M)White (1G)Gold (0.1)Silver (0.01)

Tolerance Color: Brown (1%)Red (2%)Green (0.5%)Blue (0.25%)Violet (0.1%)Gray (0.05%)Gold (5%)Silver (10%)

Calculate Resistor Value