Best Power Grid Calculator Apps

Desmos Scientific Calculator

by Desmos

Free

This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.

National Grid

by National Grid plc

Free

Securely manage your utility account on the go. Access billing, schedule payments, and report outages with ease. Biometric login provides quick and secure access to your account information and support.

Blackout Math.Power Calculator

Calculate your power needs

Free

This app helps you accurately calculate power outage durations and battery performance. It factors in real-world conditions like battery discharge, inverter efficiency, and device consumption to provide realistic estimates for runtime and charging.

Electrical Calculator Plus

by Inch Calculator

Free

This app offers a comprehensive suite of 26 electrical and electronics calculators and converters. It helps users compute various electrical properties, including Ohm's Law, current, power, voltage, and resistance. It also features tools for wire ampacity, voltage drop, and LED resistor calculations.

BaseCalc Electric Calculator

NEC Calculator Tools

Free

This app provides electricians with essential calculation tools for job-site field math, including voltage drop, wire sizing, and conduit fill. It offers a comprehensive suite of 18 calculators, saves calculation history, and allows for the creation and export of job worksheets.

Watts Amps Volts Calculator

Electrical power calculator

Free

This app serves as an advanced electrical power calculator. It allows users to easily compute and convert between Watts, Amps, and Volts for single-phase systems, and kW, Amps, Volts, and Power Factor for three-phase systems. Simply input known values to find the missing one.

Fault Current Calculator

by Cooper Bussmann, LLC

Free

This tool helps contractors, engineers, and electricians quickly calculate available fault current on single and three-phase electrical systems. It also assists in sizing fuses and conductors for various circuits and can generate labels for service equipment.

Power Calculators & Converters

Useful for power generators.

Free

This application provides accurate calculations and conversions for various power units, including watts and horsepower. It's designed for professionals and students needing to simplify complex energy and power calculations for generators and devices.

Dakota's Electrical Calculator

Voltage Drop, Conduit & Wire

Free

This app provides electricians and apprentices with essential tools for on-the-job tracking and NEC-aligned calculations. It helps with circuit analysis, load calculations, conduit fill, motor and transformer computations, and voltage drop assessments for field use and exam preparation.

Electrical & Solar Calculator

Wire, Solar & Motor Tools

Free

This app provides a suite of tools for electricians, engineers, and solar installers to quickly solve common electrical design and installation problems. It covers wire sizing, voltage drop, circuit breaker sizing, motor calculations, and solar system planning.

Electrical Calculator lite

60 Calculators & 16 Converters

Free

This comprehensive tool offers over 60 calculators and 16 converters for electrical engineering, wiring, and circuit analysis. It supports engineers, electricians, students, and hobbyists with calculations ranging from basic Ohm's Law to complex RLC circuits and power conversions.

kVA Calculator

kVA kW Amps Power Factor Volts

Free

Easily calculate and convert electrical values like kVA, kW, Amps, Volts, and Power Factor. Supports both single and three-phase calculations for engineers working with power systems.

Ohms Law Calc.

Wire Size & Voltage Drop

Free

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.