Resistor Color Code Calculator
Select the band colors to calculate resistance, tolerance, and (for 6-band) temperature coefficient. Visual resistor included.
Result
Resistance:
-
Tolerance:
-
Resistor Color Code Tips
How to Read
Each color represents a number. The first bands are digits, then a multiplier, then tolerance, then (6-band) temperature coefficient.
Color Chart
Black=0, Brown=1, Red=2, Orange=3, Yellow=4, Green=5, Blue=6, Violet=7, Gray=8, White=9.
Examples
Red-Violet-Yellow-Gold = 2.7 × 10⁴ Ω ±5%.