Solar Calculator - PV Planner

The most comprehensive solar calculator app for homeowners, installers, and solar enthusiasts. Plan your solar panel system with 20+ professional calculators - all in one free app.

Whether you're going off-grid, adding battery storage, or calculating your solar investment ROI, Solar Calculator has every tool you need.

⚡ SOLAR SYSTEM CALCULATORS
• Solar Production Calculator - Estimate daily/monthly/yearly energy output
• Solar System Size Calculator - Find the right system size for your energy needs
• Panel Cost per Watt - Compare solar panel prices and value
• Solar System Cost Estimator - Calculate total installation costs
• Roof Area Calculator - Determine how many panels fit your roof

🔋 BATTERY & STORAGE CALCULATORS
• Battery Storage Calculator - Size your battery bank correctly
• Battery Duration Calculator - Know how long your batteries will last
• Inverter Sizing Calculator - Choose the right inverter capacity

💰 FINANCIAL & ROI CALCULATORS
• Payback Period Calculator - See when your solar investment pays off
• Loan & Finance Calculator - Calculate monthly payments and total costs
• Generator Fuel Savings - Compare solar vs generator running costs

⚙️ TECHNICAL CALCULATORS
• Wire Sizing Calculator - Select proper wire gauge for your system
• Solar Plates Voltage Calculator - Configure panels in series
• Solar Plates Amperes Calculator - Configure panels in parallel
• Tilt Angle Optimizer - Find optimal panel angle for your location
• Shading Loss Calculator - Account for shade impact on production
• Solar Irradiance by Location - Get sun hours data using GPS or city selection

🚗 ADDITIONAL TOOLS
• EV Charging Calculator - Size solar system for electric vehicle charging
• Solar Water Heating Calculator - Plan solar thermal systems
• Carbon Footprint Calculator - Track your environmental impact
• Grid-Tie vs Off-Grid Comparison - Choose the best system type
• Power Consumption Calculator - Analyze your energy usage

📊 ORGANIZE YOUR PROJECTS
• Save calculation history automatically
• Create and manage multiple solar projects
• Favorite your most-used calculators for quick access
• Copy and share results easily

🌍 WORKS WORLDWIDE
• 75+ cities with pre-loaded solar irradiance data
• GPS location support for accurate local data
• Supports both metric and imperial units
• Works offline - no internet required

✅ WHY CHOOSE SOLAR CALCULATOR?
• 100% Free - All calculators included
• No registration required
• Clean, easy-to-use interface
• Professional-grade calculations
• Regular updates with new features
• Perfect for DIY solar projects

Whether you're a homeowner exploring solar options, an installer quoting projects, or a student learning about renewable energy - Solar Calculator provides accurate, reliable results for all your solar planning needs.

Download now and start planning your solar energy system today!

Recent changes:
• Fixed a crash that closed the app when opening Settings on Android 6, 7 and 8