📐 Square Footage Calculator
Measure each rectangular area in feet and enter it. For L-shaped rooms, split them into two rectangles.
Total area
How the Square Footage Calculator works
Each area is length × width; the areas are added. One square yard is 9 ft² and one square meter is about 10.764 ft².
Area = Length × Width (for each rectangle)
Total = Sum of areas · yd² = ft² ÷ 9 · m² = ft² × 0.092903
Step-by-step calculation
- 1Split the space into rectangles.
- 2Multiply length × width for each.
- 3Add the areas together.
Worked example
Rooms of 12 × 14 ft (168 ft²) and 10 × 12 ft (120 ft²) total 288 ft² = 32 yd² = 26.76 m².
Square Footage Calculator examples
| Area 1 length (ft) | Total area |
|---|---|
| 6 | 204 ft² |
| 9 | 246 ft² |
| 12 | 288 ft² |
| 15 | 330 ft² |
| 18 | 372 ft² |
Other inputs kept at the calculator's default values. Results calculated by this calculator.
Why use a Square Footage Calculator?
Measure rooms for flooring, paint, rent or sale listings.
Important factors that can affect your results
- Irregular shapes.
- Measuring wall-to-wall.
- Inches vs feet.
Frequently asked questions
How do I measure an odd-shaped room?
Split it into rectangles, measure each, and add them up.
Inches to feet?
Divide inches by 12 before entering, e.g. 10 ft 6 in = 10.5 ft.
Related calculators
Last reviewed November 2026 · How we build and check our tools · Report a problem