Resistor Color Code Calculator / Tester (5 band)

To use Calculator: select colors with dropdown menus. To use Tester: press the Random button.

© 2022 Chris E. Chaulk

Instructions. Mouse over color bands for colors. Ω is NOT needed for answers, but do separate ohmage from tolerance with a , (comma). % is required for tolerance. Metric system supported (k, M).

E-Series of standard resistor values

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Last updated: Nov 29, 2022.