Solar Panel Tilt Angle Calculator

What angle should your panels sit at?

A tilt near your latitude suits year-round output. Steeper favours winter, flatter favours summer. Everything is worked out in your browser. Nothing is saved or sent anywhere.

1. Your location

Pick a city near you, or choose your own latitude.

Only used if you pick "Use my latitude".

2. Your roof

3. Results

How it was worked out

    What this does and doesn't tell you

    • These are rules of thumb. Online tools using your exact location give a more precise answer.
    • Keep at least 10° so rain washes the panels.
    • 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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