Resistor Color Code Calculator

• 4 bands → value: two digit bands, a multiplier and a tolerance band — the common style.
• 5 bands → value: three digit bands, used on precision (1%) parts.
• Value → colors: type a resistance and get the band colors to look for.

The color painted on this digit band of the resistor. Digit colors map to 0–9 in the order black, brown, red, orange, yellow, green, blue, violet, grey, white.

The color painted on this digit band of the resistor. Digit colors map to 0–9 in the order black, brown, red, orange, yellow, green, blue, violet, grey, white.

The color painted on this digit band of the resistor. Digit colors map to 0–9 in the order black, brown, red, orange, yellow, green, blue, violet, grey, white.

The band right after the digits: it multiplies them by a power of ten (black ×1, brown ×10, red ×100, …). Gold and silver shrink the value instead: ×0.1 and ×0.01.

The last band states the guaranteed accuracy: brown ±1%, red ±2%, gold ±5%, silver ±10%. A 1 kΩ ±5% part may really measure 950–1050 Ω.

The resistance to encode as color bands, in plain ohms — 4700 for 4.7 kΩ. The result shows both the 4-band and 5-band codes.