Free Tool · Window Area Calculator

Window Area Calculator

Use this free calculator to measure total window area in square feet. Knowing your window area helps you estimate costs for window tinting installation and plan your project. Enter each window's width and height to get your total coverage area.

Enter width & height in inches — totals update instantly.

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30.0 sq ft
18.0 sq ft
40.0 sq ft

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Our team measures and quotes every project on-site — no obligation. Share your calculator results and we'll provide an exact price for your home or business.

Why window measurements matter for tinting

Tinting is priced per square foot — your total area is the single biggest driver of an accurate estimate.

Window tinting is priced per square foot, so knowing your total window area gives you an accurate cost estimate before contacting an installer. Most Houston homes have 150–300 square feet of window glass across all rooms. Larger homes and commercial properties can exceed 500 square feet. Use your total from the calculator above to check window tinting cost per square foot or request a free on-site estimate for exact pricing.

Planning a full-home project? See our residential window tinting services.

Frequently asked questions

Measuring, materials, and pricing — answered. Still stuck? Call (281) 961-3058 and we'll help.

Measure each window's width and height in inches, then multiply to get the area. Add all windows together for your total square footage. This calculator does the math for you — enter each window and it totals automatically.
Plan for your total window area plus 10% for trimming and waste. Professional installers like Greenhouse Solar Control measure on-site and account for waste in the quote.
Residential window tinting in Houston costs $6–$14 per square foot depending on film type. Ceramic film runs higher than standard reflective. See full pricing details.
Use our tint percentage calculator to compare VLT levels and see how dark different tint shades appear on your windows.
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