Squares to m² Converter
Turn a house size in squares into square metres or square metres back into squares.
30 squares is 278.7 m² or 3,000 square feet.
The formula
Square metres = squares × 9.290304
Squares = square metres ÷ 9.290304
For a quick figure in your head, multiply squares by 9.3 or divide square metres by 9.3. The converter above uses the exact factor and rounds only what it shows you.
Squares to m² for common house sizes
| Squares | Square metres | Square feet |
|---|---|---|
| 15 | 139.4 m² | 1,500 ft² |
| 20 | 185.8 m² | 2,000 ft² |
| 25 | 232.3 m² | 2,500 ft² |
| 30 | 278.7 m² | 3,000 ft² |
| 35 | 325.2 m² | 3,500 ft² |
| 40 | 371.6 m² | 4,000 ft² |
| 45 | 418.1 m² | 4,500 ft² |
| 50 | 464.5 m² | 5,000 ft² |
| 60 | 557.4 m² | 6,000 ft² |
Square metres to squares
| Square metres | Squares |
|---|---|
| 100 m² | 10.8 |
| 150 m² | 16.1 |
| 180 m² | 19.4 |
| 200 m² | 21.5 |
| 250 m² | 26.9 |
| 300 m² | 32.3 |
| 350 m² | 37.7 |
| 400 m² | 43.1 |
What is a square?
A square is an area 10 feet by 10 feet, so 100 square feet. It is an imperial unit that Australian builders and real estate agents kept using after the country went metric, which is why house sizes are still quoted in squares.
One square is 9.29 m². Going the other way, one square metre is about 0.108 squares, so a 100 m² house is about 10.8 squares.
Check what the number includes
Two homes advertised at the same number of squares can feel very different inside. One figure may be living area only. Another may be everything under the roof, with the garage, alfresco and porch counted in.
When you compare plans, ask for the living area and the total area separately. A 6 m by 6 m double garage is close to four squares on its own.
Squares and square metres: common questions
How many m² are in a square?
One square is 9.29 square metres (exactly 9.290304 m²). A square is 100 square feet and one square foot is exactly 0.09290304 m².
How do I convert sqm to squares?
Divide the square metres by 9.290304. A 200 m² house is about 21.5 squares. A 100 m² house is about 10.8 squares.
Does a house size in squares include the garage?
Not always. Some figures cover the living area only, while others count everything under the roof, including the garage, alfresco and porch. Ask which one a plan or listing uses before you compare two homes.
Comparing plans for a new home?
Bring the plans to a first meeting and we will go through the living area, the total area and what each one means for your block.
How we worked this out
One square is 100 square feet. A foot is exactly 0.3048 metres, fixed by the international yard and pound agreement of 1959, so one square is exactly 9.290304 m². The converter keeps every figure unrounded and only rounds what it shows you: squares and square metres to one decimal place, square feet to the nearest whole number.