Resistor Color Code Calculator

A resistor's value is shown by coloured bands. The first two bands give digits, the third is the multiplier and the fourth is the tolerance. Brown (1), black (0), red (×100) and gold (±5%) read as 10 × 100 = 1,000 Ω, or 1 kΩ ±5%. The digit colours run black 0, brown 1, red 2, orange 3, yellow 4, green 5, blue 6, violet 7, grey 8 and white 9. A gold tolerance band is ±5% and silver is ±10%. Read from the end that is nearest the bands, with the tolerance band on the right. Use a multimeter to confirm the value if you are unsure, because bands can be hard to tell apart.