Resistor Color Code Calculator

Decode resistor bands or enter a target value to generate matching color bands.

4.7 kΩ

Tolerance: ±5%

Math:(4 × 10 + 7) × 100 Ω=4.7 kΩ

Match your result to common stocked resistor values.

E12 Match

4.7 kΩ

E24 Match

4.7 kΩ

E96 Match

4.75 kΩ

Band 1: 1st Digit

Select a color for the highlighted band.

Resistor color code calculator with E-series matching

This tool works both ways: decode physical resistor bands or enter a target value to generate the nearest resistor color bands.

Switch between 4-band, 5-band, and 6-band resistors to include tolerance and temperature coefficient when your part needs tighter specifications.

Use the E12, E24, and E96 matches to choose a commercially available resistor instead of designing around a value that is hard to source.