Resistor and Capacitor Color Code Calculator

Number of Bands:

Resistor Information

4-band resistors: 2 significant digits, multiplier, tolerance
5-band resistors: 3 significant digits, multiplier, tolerance
6-band resistors: 3 significant digits, multiplier, tolerance, temperature coefficient
Gold and silver bands are typically used for multiplier (×0.1, ×0.01) or tolerance (±5%, ±10%)

Number of Bands:

Capacitor Information

3-band capacitors: 2 significant digits, multiplier
4-band capacitors: 2 significant digits, multiplier, tolerance
Values are typically in picofarads (pF)

Reverse Color Code Calculator

Component Type:

Value:

Unit:

Tolerance:

Number of Bands:

SMD Resistor/Capacitor Code Calculator

Component Type:

SMD Code:

SMD Code Information

3-digit code: First two digits are significant figures, third digit is multiplier (10ⁿ)
4-digit code: First three digits are significant figures, fourth digit is multiplier (10ⁿ)
R indicates decimal point: e.g., 4R7 = 4.7Ω or 4.7pF
EIA-96 code: Two digits (01-96) and a letter for multiplier (resistors only)
For capacitors, values are typically in picofarads (pF)

Color Code Reference

Color	Digit	Multiplier	Tolerance	Temp. Coefficient
Black	0	10⁰	-	250 ppm/°C
Brown	1	10¹	±1%	100 ppm/°C
Red	2	10²	±2%	50 ppm/°C
Orange	3	10³	-	15 ppm/°C
Yellow	4	10⁴	-	25 ppm/°C
Green	5	10⁵	±0.5%	20 ppm/°C
Blue	6	10⁶	±0.25%	10 ppm/°C
Violet	7	10⁷	±0.1%	5 ppm/°C
Gray	8	10⁸	-	-
White	9	10⁹	-	-
Gold	-	10^-1	±5%	-
Silver	-	10^-2	±10%	-

Color	Digit	Multiplier	Tolerance
Black	0	10⁰	-
Brown	1	10¹	±1%
Red	2	10²	±2%
Orange	3	10³	-
Yellow	4	10⁴	-
Green	5	10⁵	±5%
Blue	6	10⁶	-
Violet	7	-	-
Gray	8	-	-
White	9	-	-
Gold	-	10^-1	±5%
Silver	-	10^-2	±10%