Tool categoryRecently expanded
Electrical & Electronics
Wiring, circuit, and component reference calculators for electrical work and electronics projects.
Tools
Electrical & Electronics
Featured guides in this category — tools with a deeper how-to-use writeup
555 timer calculator Electrical & Electronics Open ADC resolution calculator Electrical & Electronics Open Antenna length calculator Electrical & Electronics Open Appliance energy cost estimator Electrical & Electronics Open Battery capacity converter (mAh to Wh) Electrical & Electronics Open Battery life calculator Electrical & Electronics Open Baud rate calculator Electrical & Electronics Open Capacitor charge time calculator Electrical & Electronics Open DAC output voltage calculator Electrical & Electronics Open Data transfer time calculator Electrical & Electronics Open Decibel (dB) calculator Electrical & Electronics Open Electricity cost calculator Electrical & Electronics Open Extension Cord Gauge and Length Safety Chart Find recommended extension cord AWG by nameplate amps and cord length for 120 V household loads. Open Filter cutoff frequency calculator Electrical & Electronics Open Frequency to wavelength converter Electrical & Electronics Open Fuse Amperage Reference Chart Look up automotive blade-fuse amperage colors and common household fuse ratings. Open Gear ratio calculator Electrical & Electronics Open Generator Wattage Reference by Appliance Compare typical running and starting watts for common appliances and jobsite tools. Open I2C address scanner reference Electrical & Electronics Open Inductor energy calculator Electrical & Electronics Open LED resistor calculator Electrical & Electronics Open Light Bulb Base Type Reference Search common bulb base and socket codes including Edison screw bayonet GU and bi-pin types. Open Motor speed/torque calculator Electrical & Electronics Open Ohm's law calculator Electrical & Electronics Open Op-amp gain calculator Electrical & Electronics Open PCB trace width calculator Electrical & Electronics Open Power consumption calculator (watts to kWh) Electrical & Electronics Open PWM duty cycle calculator Electrical & Electronics Open RC time constant calculator Electrical & Electronics Open Resistor color code calculator Electrical & Electronics Open Serial port settings generator Electrical & Electronics Open Servo angle to pulse width converter Electrical & Electronics Open Signal-to-noise ratio calculator Electrical & Electronics Open Solar panel output estimator Electrical & Electronics Open SPI clock speed calculator Electrical & Electronics Open Stepper motor steps calculator Electrical & Electronics Open Transformer turns ratio calculator Electrical & Electronics Open Voltage divider calculator Electrical & Electronics Open Wire Gauge Ampacity Table Search copper wire gauges and NEC-style ampacity ratings by insulation temperature and common use. Open Wire size calculator (ampacity) Electrical & Electronics Open