Electrical Circuits & Components

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.

3D illustration of a copper wire with measurement indicators for calculating electrical resistance and resistivity

Wire Resistance Calculator

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

Read More »
3D illustration of an electronic capacitor storing electrical energy with Joule measurement indicators

Capacitor Energy Calculator

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

Read More »
3D illustration of an operational amplifier circuit showing signal amplification and feedback resistors

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.

Read More »
3D illustration of a 555 Timer IC generating square wave pulses for frequency and duty cycle calculation

555 Timer Calculator

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.

Read More »
3D circuit diagram of a Wheatstone Bridge showing four resistors in a balanced diamond configuration

Wheatstone Bridge Calculator

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.

Read More »
3D visualization of a notch filter frequency response curve showing specific frequency rejection

Notch Filter Calculator

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

Read More »
3D illustration showing the relationship between frequency and inductive reactance in a copper coil

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.

Read More »
Scroll to Top

Instant Quote

Scan the code