Troubleshoot
Bench Tools & Calculators
Fast, offline tools for the values you compute a hundred times a day. Everything runs on-device.
Resistor color-code decoder
Pick the bands; read the value. Supports 4- and 5-band.
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SMD resistor-code decoder
Enter the printed code: 3-digit (472), 4-digit (4702), or R-notation (R10, 4R7).
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Ohm’s law & voltage divider
Enter any two of V, I, R for Ohm’s law; or all three divider fields for Vout.
Enter two values…
Divider Vout—