Solar Inverter Sizing Calculator
Calculate preliminary AC inverter power from DC array capacity and a user-entered DC:AC ratio, with a comparison table of up to 20 ratios.
AC kW = DC kWp ÷ entered DC:AC ratio. No ratio is recommended or prefilled. This is not inverter selection and does not check voltage, current, or MPPT limits. DC ≥ 0; q > 0
A QUICK WALKTHROUGH
How to use this tool
- Calculate preliminary AC inverter power from DC array capacity and a user-entered DC:AC ratio, with a comparison table of up to 20 ratios.
- AC kW = DC kWp ÷ entered DC:AC ratio. No ratio is recommended or prefilled. This is not inverter selection and does not check voltage, current, or MPPT limits.
Formula and scope
AC kW = DC kWp ÷ entered DC:AC ratio. No ratio is recommended or prefilled. This is not inverter selection and does not check voltage, current, or MPPT limits. DC ≥ 0; q > 0
Assumptions
All numerical inputs are user supplied; no numerical recommendations are prefilled.
Local processing
Values stay in your browser.
GOOD TO KNOW
Common questions
What does this estimate?
It calculates only from your inputs; it is not equipment or safety advice.
Are inputs uploaded?
No. All calculations run locally in your browser.