Transformer kVA Calculator
Calculate transformer kVA ratings for single-phase and three-phase systems. Includes formulas, step-by-step sizing guides, and practical application examples.
February 9, 2026
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.
LOS Distance Formula
Calculate Line of Sight (LOS) distance with our free tool. Learn the formulas, earth curvature effects, and atmospheric refraction factors for radio and radar.
February 9, 2026
Terrain Obstruction Profile
Analyze signal paths with our interactive Terrain Obstruction Profile. Visualize line of sight, Fresnel zones, and topography for telecom and aviation planning.
February 9, 2026
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.
February 9, 2026
Inductive Reactance Calculator
Calculate inductive reactance (XL) instantly using our interactive XL = 2πfL tool. Features real-time results, theory explanations, and a dynamic visualization chart.
February 9, 2026
Bandpass Filter Calculator
Interactive RLC Bandpass Filter Designer. Calculate center frequency, bandwidth, and Q-factor with real-time Bode plots and circuit diagrams.
February 9, 2026
Op-Amp Gain Calculator
Calculate gain for inverting, non-inverting, differential, and summing op-amps. Features circuit diagrams, formulas, and a gain-bandwidth product visualizer.
February 9, 2026
Three Phase Calculator
Calculate current (Amps), real power (kW), and apparent power (kVA) for three-phase systems. Includes power triangle visualization, formulas, and key concepts.
February 9, 2026
Capacitance of Cylindrical Capacitor
Calculate the capacitance of a cylindrical capacitor with our interactive tool. Explore the formula, derivation steps, and real-world uses like coaxial cables.
February 9, 2026
Voltage Drop Calculator
Calculate voltage drop across cables based on material, length, and current. Includes formulas and NEC-compliant tables for electrical engineering projects.
February 9, 2026