Smart Solar Sizing Tool

Calculate How Many Solar Panels Fit on Your Roof

Get instant estimates of panel count, system capacity, and annual energy production. Designed for homeowners, installers, and solar professionals.

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500K+Panels Calculated
12GW+Capacity Estimated
98%Accuracy Rate

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Solar Calculator

Calculate Your Solar Potential

Enter your roof dimensions and preferences to instantly estimate how many solar panels fit and how much energy you can generate.

Enter roof details and hit Calculate to see your results

Our Categories

Solar Solutions for Every Need

Explore our specialized calculators and guides for different solar installation types.

01

Residential Rooftop

  • Gable, hip & flat roof types
  • Panel layout optimization
  • Shade impact analysis
  • Net metering estimates
Learn More
02

Commercial Rooftop

  • Large-scale roof arrays
  • ROI & payback period
  • Load bearing calculations
  • Commercial incentive finder
Learn More
03

Ground-Mounted Systems

  • Land area optimization
  • Tilt & azimuth calculator
  • Foundation requirements
  • Tracking system options
Learn More
04

Solar Carports & Canopies

  • Parking area coverage
  • EV charging integration
  • Structural design guides
  • Dual-use space planning
Learn More
Why Solar Sizing Matters

Right-Size Your Solar System for Maximum Savings

Installing too few panels leaves money on the table. Too many means wasted investment. Our calculator helps you find the sweet spot — maximizing energy production while optimizing every square foot of your roof.

  • Reduce electricity bills by up to 90%
  • Increase your property value
  • Lower your carbon footprint
  • Qualify for tax credits & incentives
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Solar Energy Insights & Guides

Stay up to date with the latest solar technology trends, installation tips, and energy-saving strategies.