Power and Current Calculator
Calculate current, resistance, or power using Ohm’s and Power Laws
Electrical Calculator
V
Ω
Use Cases
This tool is ideal for DIY enthusiasts checking wire sizing, electricians verifying circuit parameters, hobbyists estimating resistor values, and students applying electrical formulas. It simplifies calculations for home projects, circuit design, or educational exercises.
About Electrical Calculations
Ohm’s Law (U = R × I) relates voltage, current, and resistance, while the Power Law (P = U × I) calculates electrical power. These formulas are fundamental in electronics and electrical engineering. For example, a 230V circuit with a 100Ω resistor draws 2.3A and consumes 529W. Accurate calculations ensure safe and efficient circuit design (Source: Basic Electrical Engineering, MIT OpenCourseWare).