Square Footage Calculator
Calculate room, floor, and wall area in square feet and square metres for property projects.
Square Footage Calculator
This calculator auto-updates when values change.
Square feet
120 sq ft
Square metres
11.15 m²
Disclaimer: This property and construction calculator provides an estimate only. Actual material requirements can vary based on site conditions, product specifications, installation method, waste, and local building requirements. Confirm quantities with your contractor or supplier before ordering.
About This Square Footage Calculator
This square footage calculator finds the area of rooms, floors, walls, and simple shapes in square feet and square metres.
It is a useful starting point for flooring, painting, tiling, renovation planning, and estimating material coverage.
How to Use This Calculator
- 1
Choose a shape
Select rectangle, circle, or triangle based on the area you need.
- 2
Enter measurements
Add length and width, diameter, or base and height.
- 3
Calculate area
Review square feet and square metres immediately.
- 4
Use related tools
Apply the area result to paint, flooring, tile, or other material calculators.
Frequently Asked Questions
How do you calculate square footage?v
For a rectangle, multiply length by width. Other shapes use their standard area formulas.
How do you convert square feet to square metres?v
Multiply square feet by 0.092903.
Can this calculate wall area?v
Yes. Use wall width as length and wall height as width.