Electrical & Solar Calculator

Electrical & Solar Calculator brings essential electrical engineering, wiring, and solar design tools together in one practical app.

Designed for electricians, electrical engineers, solar installers, technicians, students, and DIY enthusiasts, it helps you calculate wire sizes, voltage drop, circuit breaker ratings, transformer capacity, motor current, and solar system requirements—without switching between multiple calculators.

ELECTRICAL WIRING & INSTALLATION

• Wire & Cable Sizing — Estimate conductor sizes using load, current, voltage, distance, and installation parameters.
• Voltage Drop — Calculate voltage drop for electrical cables and assess circuit performance.
• Circuit Breaker Sizing — Estimate protective device ratings for electrical loads.
• Cable Ampacity — Evaluate current-carrying capacity.
• Conduit Fill — Calculate conduit requirements for cable installations.
• Earthing & Busbar Tools — Perform practical grounding and busbar sizing calculations.
• Short-Circuit Calculations — Estimate fault-current parameters for electrical analysis.

SOLAR POWER & BATTERY SYSTEMS

• Solar Panel Sizing — Estimate PV capacity based on energy needs.
• PV String Calculator — Evaluate solar panel series and string configurations.
• Battery Bank Sizing — Calculate battery storage requirements.
• Inverter Sizing — Estimate suitable inverter capacity for connected loads.
• Charge Controller Calculations — Support solar charge controller planning.
• Solar Cable Sizing — Calculate cable requirements and voltage drop for solar installations.

Useful for off-grid systems, home solar projects, and battery backup planning.

MOTORS, TRANSFORMERS & POWER

• Motor Calculations — Work with motor current, power, horsepower, and efficiency.
• Transformer Sizing — Calculate kVA, voltage, current, and power requirements.
• Power Factor Correction — Estimate capacitor requirements.
• Load & Energy Calculations — Evaluate power consumption and energy costs.
• Lighting & Distribution — Access lighting calculations and distribution board load scheduling.

ELECTRICAL CIRCUITS

• Resistors — Series, parallel, and combination networks.
• Capacitors — Series, parallel, and combination networks.
• Inductors — Series and parallel networks.
• RC, RL & RLC — Analyze common electrical circuits.
• Star–Delta Conversion — Convert between star and delta networks.

HANDY ELECTRICAL CONVERSIONS

Convert common electrical quantities, including watts and horsepower, VA and W, reactive power, and AWG and mm². Select supported metric or imperial units where applicable.

WHY CHOOSE ELECTRICAL & SOLAR CALCULATOR?

• Wiring, protection, power, circuits, and solar design tools in one place.
• Straightforward inputs and easy-to-read results.
• Useful on-site, in the classroom, and during project planning.
• Practical calculators for residential, commercial, and solar electrical work.

From sizing a cable to planning a solar battery bank, Electrical & Solar Calculator helps you work more efficiently and make informed design decisions.

Important: Always verify results against applicable electrical codes, manufacturer specifications, and professional installation requirements before carrying out electrical work.