Point your phone's camera at a resistor to instantly identify its value. Currently supports 4-band carbon film resistors with a 5% tolerance.
Resistor AI Calculator by Daichi Takigawa



30+ similar apps compared and reviewed
Whether you want more options like ResistorVision or a completely different take on the same concept, our curated list of 30+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.



Point your phone's camera at a resistor to instantly identify its value. Currently supports 4-band carbon film resistors with a 5% tolerance.






Calculate the correct series resistor needed to safely power light-emitting diodes. Input supply voltage, LED voltage drop, current, and the number of LEDs to find the required resistor value and wattage.








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