Square Feet Calculator
Total sq ft of rooms, floors and plots
Total Area
Area by room
| Area | Sq ft | Sq m |
|---|---|---|
| Living room | 192 | 17.84 |
| Bedroom | 132 | 12.26 |
| Kitchen | 80 | 7.43 |
- 1Measure each roomLength and width, wall to wall
- 2Add them as rowsName them if you like
- 3See the totalIn sq ft, m², gaj, plus cost
How is square footage calculated?
Each rectangle's area is its length times its width. The total is the sum of all the rectangles.
Square feet = length (ft) × width (ft)
Total = room 1 + room 2 + …
1 sq ft = 0.0929 m²; 9 sq ft = 1 gaj
Carpet area, built-up area and super built-up area
Carpet area is the floor you can actually cover with a carpet, inside the walls. Built-up area adds the thickness of walls and balconies. Super built-up area also adds a share of lobbies, lifts and stairs. Measuring room by room gives you the carpet area.
Odd-shaped rooms
Split the room into rectangles, measure each one, and add them as separate rows. For a small triangular corner, enter it as a rectangle and halve the width.
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Frequently asked questions
How do I calculate the square feet of a room?
Measure the length and width in feet and multiply them. A 12 × 10 ft room is 120 sq ft.
How do I convert square metres to square feet?
Multiply by 10.764. For example, 50 m² is about 538 sq ft.
What if I measured in feet and inches?
Choose “Inches” and enter everything in inches, or convert the inches to decimal feet (6 inches = 0.5 ft) and stay in feet.
Last reviewed: October 2026