Solar Inverter Sizing Calculator

Size an inverter for a solar array. Free, instant.

How to Use Solar Inverter Sizing Calculator

1

Enter panel specs.

2

Enter DC:AC ratio (typically 1.1–1.3).

3

Get recommended inverter size.

Frequently Asked Questions

What is DC:AC ratio?

Ratio of solar array DC capacity to inverter AC capacity. 1.1–1.25 is standard.