About this square footage calculator
A square footage calculator helps with flooring, paint estimates, rental listings, and moving plans.
How to use
- Choose feet or meters.
- Enter length and width.
- Optionally multiply by identical rooms.
Formula
Area = Length × Width × Rooms
Worked examples
Example: 12 ft × 10 ft = 120 ft² ≈ 11.15 m².
Tips
- For L-shaped rooms, split into rectangles and add areas.
Frequently asked questions
How do I calculate square footage?
Multiply length by width in feet. A 12×10 room is 120 square feet.