Panels That Fit Your Roof Calculator

How many panels can you fit?

Measure the usable area, leaving clear edges as your rail maker and installer require. Everything is worked out in your browser. Nothing is saved or sent anywhere.

1. Roof area

2. Panel

3. Results

How it was worked out

    What this does and doesn't tell you

    • Clamp, rail and edge clearance rules can reduce this. Your installer will confirm.
    • Safety: in Australia, any work on 240V AC wiring, including connecting an inverter, battery or solar system to a home's switchboard or fixed wiring, must be done by a licensed electrician.
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