Voltage Drop Calculator
Calculate voltage drop across cables based on material, length, and current. Includes formulas and NEC-compliant tables for electrical engineering projects.
December 31, 2025
PCB Tools
The ultimate all-in-one PCB tools and calculator hub. Access professional-grade utilities for circuit design, RF engineering, impedance matching, and manufacturing analysis. From basic Ohm’s Law to complex microwave propagation, get precise engineering results to optimize your hardware projects.
Ohm’s Law Calculator
Easily calculate voltage, current, resistance, and power with our Ohm’s Law calculator. Features a 12-formula power wheel and interactive VI relationship charts.
December 18, 2025
CRC Calculator Online – Free Tool
Use our free, fast, and accurate online CRC calculator to compute checksums for CRC-8, CRC-16, CRC-32, and more. Ensure data integrity and detect transmission errors instantly.
December 10, 2025
LED Resistor Calculator
Use our free LED resistor calculator to find the perfect resistor for your LED circuit. Get accurate values for single LEDs, multiple LEDs, and different power sources.
November 22, 2025
Voltage Divider Calculator
Easily calculate output voltage, resistance, or current for loaded and unloaded voltage dividers. Includes formulas, circuit diagrams, and common applications.
November 16, 2025
Capacitor Calculator
Use our All-in-One Capacitor Calculator to decode codes, calculate series/parallel values, RC time constants, and capacitive reactance with ease.
October 28, 2025
Low Pass Filter Calculator
Calculate the cutoff frequency for RC and RL low-pass filters. Features an interactive calculator, circuit diagrams, Bode plots, and core filter theory.
October 26, 2025
Radio Horizon Calculator
Calculate theoretical radio horizon distance based on antenna height. Explore formulas, atmospheric refraction effects, and dual-antenna system link planning.
October 21, 2025
Parallel Plate Capacitor Calculator
Use our online calculator to determine the capacitance of a parallel plate capacitor. Learn the formula, principles, and key variables like plate area and distance.
October 19, 2025
Inductor Calculator kits
Calculate air core coil inductance using Wheeler’s formula. Input coil diameter, length, and turns to get instant results for your RF and antenna design projects.
October 18, 2025