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Sensors
Robotics
Stem Kits
DIY
Arduino Project
Electronics Toolkit
Decode components in seconds
Resistor Color Code
Decode 4-band and 5-band resistors instantly
Capacitor Code
Convert 3-digit codes to pF, nF, and µF
Inductor Color Code
Calculate inductance from color bands
Power Calculator
Calculate Power using Ohm's Law (V, I, R)
Voltage Divider
Calculate resistor divider output (Vin, R1, R2)
Battery Life
Estimate battery runtime (mAh, mA)
Resistor Network
Calculate Series and Parallel equivalence
AC Circuits
Reactance (Xl, Xc) and Resonance
Capacitor Network
Series and Parallel capacitance
Inductor Network
Series and Parallel inductance
Semiconductor
LED Resistor & Diode Calculations
Digital Electronics
Number Base Converter & Logic
Motor Calculations
Motor Current & Power Estimates
Comm & Signal
Frequency to Wavelength & more
PCB Design
Trace Width & Via Current
