electronics calculator

Electro Cal is a complete offline calculator and reference toolkit built for electronics engineering students, diploma and degree holders, hobbyist makers, and competitive exam aspirants (GATE, SSC-JE, RRB-JE, State AE/JE, and Electronics Trade exams). Whether you're designing a PCB trace, sizing a filter, working out an SMPS converter, or solving a quick Ohm's Law problem before an exam, Electro Cal puts more than 100 real, working calculators in your pocket — with no internet connection required. WHY ELECTRO CAL - 100+ calculators covering analog electronics, digital logic, power electronics, RF & communication, embedded systems, and PCB design & construction - Every formula is real — sourced from recognized standards, datasheets, and textbook identities like IPC-2221, Shannon-Nyquist, and standard filter design equations. No dummy results, ever. - Built-in "Formula Used" panel on every result, so you see exactly which equation, variables, and source were used — great for learning, not just calculating. - 100% offline. No account, no login, no cloud sync. Your data never leaves your device. - Engineering-notation results (p, n, µ, m, k, M, G) so tiny capacitances and huge frequencies display the way engineers actually read them. - Clean, distraction-free "Signal Bench" design — built to feel like a well-lit circuit board on your workbench. WHAT YOU CAN CALCULATE Analog & Passive Components — resistor color codes, capacitor/inductor reactance, RC/RL time constants, voltage dividers, and more. Digital & Logic — number base conversions, logic gate truth-table helpers, Boolean simplification aids, and timing calculators. Power Electronics — SMPS buck/boost converter design (duty cycle, inductor ripple current, output capacitor), regulator thermal design, and rectifier/filter calculators. RF & Communication — amplitude and frequency modulation index, Carson's Rule bandwidth, link budget, noise figure & SNR, bit rate/baud rate conversion, and Shannon channel capacity. Microcontrollers & Embedded Systems — crystal oscillator load capacitance, UART baud-rate generator, PWM frequency & resolution, ADC reference scaling, I2C pull-up resistor sizing, and battery-life estimation. PCB Design & Construction — trace width for current capacity (IPC-2221), trace resistance and voltage drop, via current capacity, microstrip and stripline impedance, copper weight conversion, and solder paste volume estimation. Filters & Signal Processing — RC/RL/RLC filter cutoff and bandwidth, Butterworth filter order, Sallen-Key active filter components, and Nyquist sampling rate. Sensors & Instrumentation — Wheatstone bridge output, strain gauge, thermocouple and RTD/thermistor temperature conversion, load cell scaling, and 4–20mA current loop calculations. Download Electro Cal and carry a full electronics reference bench in your pocket — from first-semester basics to PCB fabrication math. Support: [email protected] Website: https://purohitmoshai.com