Electrical Engineering Calculators

Ohm's Law and Power

Calculate voltage, current, resistance and electrical power using Ohm's law formulas.

Electric Power

Calculate electrical power from voltage, current, or resistance values.

Electric Energy

Calculate electrical energy consumption and costs over time.

Electric Charge

Calculate electric charge from current and time relationships.

Wire Resistance

Calculate resistance of wires based on material, length and cross-section.

Voltage Drop

Calculate voltage drop in electrical wires and cables.

Capacitor Capacitance

Calculate capacitance values for various capacitor configurations.

Internal Resistance

Temperature Drift

Calculate resistance changes due to temperature variations.

Temperature Coefficients

Reference table of temperature coefficients for various materials.

Coulomb's Law

Calculate electrostatic force between charged particles.

Battery Capacity

Calculate battery capacity, runtime and energy storage.

Decibel Converter

Convert between decibels, voltage, and power values.

Decibel - Factor

Convert decibel values to linear factors and vice versa.