An online tool for calculating resistance values of 4-band resistors using color codes quickly and accurately.
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Updated
Jun 17, 2025 - JavaScript
An online tool for calculating resistance values of 4-band resistors using color codes quickly and accurately.
Resistor color codes, Ohm's law, voltage dividers and series/parallel resistance, right in your browser.
Resistor Color Code Calculator written in WPF (school project)
Electronics design calculator: resistor codes, E-series, dividers, RC filters, NE555, op-amps, zener regulators and rectifiers.
Calculate 3–6 band resistor values with tolerance and range details, and convert ceramic capacitor markings to capacitance—or capacitance back to standard codes.
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