Our Power Calculator is a versatile online tool designed to simplify complex electrical and mechanical power calculations for engineers, technicians, and industry professionals. This comprehensive calculator allows users to determine power measurements using various parameters, including voltage, current, resistance, work, and time. Whether you’re designing electrical systems, troubleshooting equipment, or performing energy efficiency analyses, this tool provides instant, accurate results with minimal input. The calculator features multiple calculation methods, enabling users to compute power in watts using either electrical components or mechanical work principles. For businesses and technical teams, it serves as an essential resource for project planning, system design, and technical documentation. Start using our Power Calculator today to streamline your calculations and improve workflow efficiency.
Comprehensive power calculator supporting DC, single-phase AC, three-phase AC, mechanical, and solar PV systems. Calculate power, voltage, current, torque, and energy consumption with instant results for engineering applications.
Enter any two of voltage, current, or resistance and the calculator returns power in watts. U.S. homes supply 120 V ± 5 % as standard (NEC 2023, https://www.nfpa.org/), so a 2 A device draws ≈ 240 W.
Use this online power calculator to convert work (joules) and time (seconds) into power (watts) in one click. Type any positive values, press “Calculate,” and the tool returns wattage rounded to two decimals. One watt equals one joule of energy transferred every second (NIST, 2019).
