Resistor Calculator

A collection of tools to calculate resistor values based on color codes and to find the total resistance of circuits.

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Resistor Color Code Calculator

Number of Bands: 4 Band5 Band

1st Band:Brown (1)Red (2)Orange (3)Yellow (4)Green (5)Blue (6)Violet (7)Grey (8)White (9)

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

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

Multiplier:Black (x1)Brown (x10)Red (x100)Orange (x1,000)Yellow (x10,000)Green (x100,000)Blue (x1,000,000)Violet (x10,000,000)Grey (x100,000,000)White (x1,000,000,000)Gold (x0)Silver (x0)

Multiplier:Black (x1)Brown (x10)Red (x100)Orange (x1,000)Yellow (x10,000)Green (x100,000)Blue (x1,000,000)Violet (x10,000,000)Grey (x100,000,000)White (x1,000,000,000)Gold (x0)Silver (x0)

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

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

Calculate

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Resistors in Series & Parallel