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Square Footage Calculator
Calculate square footage of rooms, houses, and irregular shapes. Convert between square feet, square meters, and square yards.
Cubic Feet
33.33 cu ft
Cubic Yards
1.23 cu yd
80-lb Bags
47 bags
60-lb Bags
62 bags
How to Use the Square Footage Calculator
Enter your values above for an instant result. This tool uses verified formulas and is optimised for users in USA, Canada, UK, Australia. All calculations happen in your browser — your data is never sent to our servers.
Frequently Asked Questions
How do I calculate square footage?
For a rectangle: length × width. For a 15 × 20 ft room, square footage = 300 sq ft.