Electronics
Ohm's law, voltage dividers, resistor codes, LED and PCB calculators.
12 tools
- Ohm's Law CalculatorSolve for voltage, current, resistance or power given any two values.
- Voltage Divider CalculatorCalculate output voltage from two resistors and an input voltage.
- Current Divider CalculatorCalculate branch currents through parallel resistors.
- Resistor Colour Code DecoderDecode 4, 5 and 6-band resistor colour codes to resistance values.
- LED Resistor CalculatorCalculate the correct series resistor value for an LED circuit.
- Capacitor Charge CalculatorCalculate RC circuit charge and discharge times.
- PCB Trace Width CalculatorCalculate minimum PCB trace width for a given current (IPC-2221).
- Frequency / Period ConverterConvert between frequency (Hz, kHz, MHz, GHz) and period.
- dB (Decibel) CalculatorCalculate power and voltage gain or loss in decibels.
- ADC CalculatorCalculate ADC LSB size, scaling factor and max voltage. Chip presets for Arduino, ESP32, ADS1115 and more.
- DAC CalculatorCalculate DAC output voltage and LSB size from resolution, Vref and output code.
- Wye ↔ Delta CalculatorConvert resistor networks between Wye (Y / star) and Delta (Δ / triangle) configurations.