Window Count Estimator: Window Tool

Screening estimate only.A licensed window installer and your local building code are authoritative for final sizing, egress compliance, and product selection. Confirm every result with a pro and your local code.

Screening result

Choose your home size to estimate a typical window count range.

Fine Print and Sources

Screening estimate only. These tools use only the values you enter and simple planning math. A licensed window installer and your local building code are authoritative for final sizing, egress compliance, product selection, and pricing. Confirm every result with a pro and your local code.

The count ranges here are rough planning estimates from home size, bedrooms, and floors. They are not a measurement. Count your actual openings, including small, fixed, and basement windows, before you order or budget.

NFRC window ratings: explains U-factor and the whole-window performance labels these estimates rely on.
Energy Star windows, doors, and skylights: describes the climate-based efficiency criteria to weigh alongside these screening numbers.