Electrical & Solar calculator

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About this app

Electrical & Solar Calculator is a comprehensive electrical calculator and solar sizing toolkit for electricians, electrical engineers, technicians, installers, students, contractors, and DIY professionals.

Quickly perform everyday electrical calculations, size cables and distribution boards, calculate voltage drop, apply cable derating factors, size solar systems and inverters, calculate motor and transformer values, estimate energy costs, and access useful electrical references—all from one app.

Whether you are working on residential wiring, commercial installations, electrical design, maintenance, solar installations, or studying electrical engineering, Electrical & Solar Calculator provides practical tools for faster calculations and better planning.

Electrical Cable & Wiring Calculators

• Cable sizing calculator
• Voltage drop calculator
• Cable derating calculator
• Conduit fill calculator
• Electrical load calculations
• Current and power calculations
• Cable and wiring tools
• Distribution board (DB) sizing

Solar & Inverter Calculators

Plan and estimate solar power systems using practical solar calculators.

• Solar system sizing
• Solar panel sizing
• Battery sizing
• Inverter sizing
• Load and energy estimation
• Solar power calculations
• Backup power calculations

Useful for home solar systems, off-grid installations, backup power systems, and preliminary solar system design.

Motor & Transformer Calculators

Perform common calculations for electrical machines and equipment.

• Motor electrical calculations
• Motor current calculations
• Transformer calculations
• Transformer sizing
• AC power calculations
• Single-phase calculations
• Three-phase calculations

Power & Energy Calculators

Calculate important electrical quantities quickly.

• Electrical power
• AC power
• Energy consumption
• Energy cost
• Voltage
• Current
• Resistance
• Power factor related calculations
• Single-phase and three-phase electrical values

Estimate electricity consumption and operating costs for appliances, equipment, and electrical loads.

Electronics Calculators

Useful electronics tools are also included for technicians, students, and engineers.

• Resistor calculators
• Capacitor calculators
• Capacitive reactance
• Inductive reactance
• Electrical resistance calculations
• Basic circuit calculations

Electrical Converters

Quickly convert commonly used electrical and engineering units without leaving the app.

Convert values used in electrical power, energy, voltage, current, resistance, capacitance, and other electrical calculations.

Electrical References

Access useful reference information for standard electrical systems and commonly used electrical values.

The reference section is designed to provide quick access to information useful during electrical installation, engineering calculations, troubleshooting, study, and field work.

Designed For

• Electricians
• Electrical engineers
• Solar installers
• Electrical technicians
• Electrical contractors
• Maintenance technicians
• Engineering students
• Electronics students
• Solar professionals
• DIY electrical projects

Why Use Electrical & Solar Calculator?

Instead of using separate apps for electrical calculations, cable sizing, voltage drop, solar sizing, inverter calculations, motors, transformers, and electrical conversions, keep your essential tools together in one convenient electrical toolbox.

Electrical & Solar Calculator helps simplify repetitive calculations and provides quick access to commonly needed electrical engineering tools wherever you work.

From cable sizing and conduit fill to solar system sizing and energy cost calculations, the app is built to be a practical companion for electrical and solar work.

Install Electrical & Solar Calculator and keep your essential electrical, solar, power, wiring, and engineering calculators in one place.
Electrical, cable, voltage drop, solar, inverter & power calculators for pros.
Updated on
Sep 8, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Personal info and 2 others
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit