This free DIY solar calculator makes it simple to estimate the size of your solar array, the number of panels, battery storage, and the inverter capacity you''ll need.
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Calculate solar panel requirements for your home with our free solar calculator. Includes system size, number of panels, and area calculations.
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Quickly determine your solar panel array size: enter daily kWh, panel wattage, and sunlight hours to get a precise estimate of your system size.
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Our Solar Panel Size Calculator uses your monthly electricity usage, local peak sun hours (based on your state), and selected panel wattage to determine exactly how many panels you need — along
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Solar Panel Size Estimator Calculator helps you determine the appropriate size of solar panels needed for your specific energy requirements.
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How many solar panels do I need? Use our 2025 calculator to size your system by home size, kWh usage, and location. Get panel count, roof
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Use our solar panel calculator to find your solar power needs and what panel size would meet them.
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Calculate your solar panel requirements effortlessly. Our Solar Panel Calculator helps you size your system correctly.
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How to use this calculator: Enter your monthly electricity consumption and location details to calculate required solar panel system size.
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Use this free interactive solar panel calculator to find out how many solar panels fit on your roof. Draw your roof outline on the satellite map, choose your panel size, and the tool instantly fills in
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