Solar Panel Watts, Volts and Amps Calculator

Read the panel label, then see what your array makes.

Use the figures from the panel label at STC (standard test conditions). Everything is worked out in your browser. Nothing is saved or sent anywhere.

1. One panel

2. Your array

3. Results

How it was worked out

    What this does and doesn't tell you

    • Panel voltage rises in cold weather. Check the cold Voc against your controller's maximum input voltage.
    • Real output is usually lower than STC because of heat, angle and dust.
    • 240V AC mains can kill. In Australia, work on household mains wiring must be carried out by a licensed electrician. Low-voltage DC systems can still deliver very high current.
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