Solar Roof Size Estimator
Estimate how many solar panels fit on your roof and how much energy they'll produce. Enter your roof dimensions.
Solar Roof Size Estimator
Estimate how many solar panels fit on your roof and how much energy they'll produce. Enter your roof dimensions. Use the calculator above to get a personalized estimate based on your specific situation. For the most accurate numbers, we recommend getting quotes from local solar installers.
How This Calculator Works
Our calculator uses your inputs along with average solar production data, current federal and state incentives, and typical utility rate trends to estimate your costs and savings. Actual results will vary based on your specific roof, shading, installer pricing, and utility rates.
Get Your Free Solar Quote
Compare local solar quotes and estimated savings.
Tips for Getting Accurate Solar Estimates
Online calculators provide useful ballpark figures, but for precise pricing you should get quotes from 2-3 local installers who can assess your roof in person. They'll account for shading, roof angle, structural requirements, and local permitting costs that generic calculators can't factor in.