Square Footage Calculator
Calculate square feet and square metres for rooms, floors and yards. Mix feet, inches, metres or centimetres.
How it works
Area = length × width × count. 1 ft² = 0.09290304 m². 1 yd² = 9 ft².
Examples
- A 12 ft × 12 ft room = 144 ft² = 13.38 m².
- Two 4 m × 5 m rooms = 40 m² ≈ 430.6 ft².
FAQ
How do I measure an L-shaped room?
Split it into rectangles, calculate each, and add them together.
How much extra flooring should I buy?
Typically 5–10% for cuts and waste; more for diagonal layouts.