
Wire Resistance Calculator
Calculate wire resistance based on material, length, diameter, and temperature. Includes an AWG chart, resistivity data, and interactive physics visualizations.
Energy storage & reactive calculation
Signal processing & frequency tools
Basic circuit laws & series-parallel
General electronic reference tools
DRC & fabrication requirements
Track width, spacing & via calculators
Regulation & magnetic component design
Radiation patterns & gain estimation
VSWR, Smith chart & matching
Attenuation & link budget analysis
Calculate the PCB trace width based on temperature rise, current, and copper thickness (IPC-2152).
Professional online circuit calculators for electrical engineers. Easily calculate capacitance, inductance, filter resonance, and Ohm’s Law parameters. From capacitor energy to discharge timing, access precise tools to validate your component selections and circuit designs.

Calculate wire resistance based on material, length, diameter, and temperature. Includes an AWG chart, resistivity data, and interactive physics visualizations.

Calculate stored energy in a capacitor using E = ½CV². Use our interactive tool to visualize the exponential relationship between voltage and electrical energy.

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.

Calculate the capacitance of a cylindrical capacitor with our interactive tool. Explore the formula, derivation steps, and real-world uses like coaxial cables.

Calculate gain for inverting, non-inverting, differential, and summing op-amps. Features circuit diagrams, formulas, and a gain-bandwidth product visualizer.

Easily calculate the output parameters for both Astable and Monostable 555 timer circuits. This online tool provides instant results for frequency, period, duty cycle, and pulse width based on your resistor and capacitor values. Perfect for rapid electronic circuit prototyping and design.

Instantly calculate the unknown resistance in a balanced Wheatstone bridge. Input three known values to find the fourth. The circuit diagram updates in real-time to reflect the bridge’s state.

Calculate component values for Passive Twin-T and RLC notch filters. Includes center frequency tuning, Q factor analysis, circuit diagrams, and Bode plots.

Interactive RLC Bandpass Filter Designer. Calculate center frequency, bandwidth, and Q-factor with real-time Bode plots and circuit diagrams.

Calculate inductive reactance (XL) instantly using our interactive XL = 2πfL tool. Features real-time results, theory explanations, and a dynamic visualization chart.
Well Done Technology was established in 2008, focus on reverse engineering, IC unlock, PCB Clone and design. Our technical team of more than 40 people includes senior engineers with rich experience.