🎨 Resistor Color Code Calculator
Decode 4-band and 5-band resistors instantly. Visualize the bands and get accurate resistance values.
Resistance Value
💡 Expert Tips for Electronics
Memorize the mnemonic: "Black Beetles Running On Your Garden Bring Very Good Weather" (Black 0, Brown 1, Red 2, Orange 3, Yellow 4, Green 5, Blue 6, Violet 7, Gray 8, White 9). It sounds silly, but every engineer uses it.
Watch out for "Red-Red-Red-Gold". That's 2.2kΩ, one of the most common resistors for LED circuits. "Brown-Black-Red-Gold" is 1kΩ, the universal pull-up resistor.
Don't trust old resistors. Carbon composition resistors (the old brown cylindrical ones) can drift significantly in value over time due to moisture and heat. Always measure with a multimeter if precision matters.