Wirecora value library

Popular resistor values

Choose a common value to see exact color bands, tolerance guidance, a realistic resistor diagram, and an interactive calculator initialized to that resistance.

Ohms

Common resistor values below 1 kΩ.

Kilo-ohms

Common values from 1 kΩ up to, but not including, 1 MΩ.

Mega-ohms

Common resistor values of 1 MΩ and above.

Need a different resistor value?

The curated directory stays intentionally focused, while the calculator can decode or generate any supported 3-, 4-, 5-, or 6-band value.