How to Convert Square feet to Square metres (sq ft to m²)
Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet. This guide shows how to convert square feet into square metres by hand, with examples and a quick-reference table.
The conversion
To convert square feet to square metres, multiply the value by 0.09290304. To go the other way, divide by the same number (or multiply by 10.7639104167). For a quick estimate, multiply by about 0.093.
Square metres = square feet × 0.09290304
Worked examples
- 3 sq ft = 0.278709 m²
- 12.5 sq ft = 1.1613 m²
- 75 sq ft = 6.9677 m²
Square feet to Square metres table
| Square feet | Square metres |
|---|---|
| 1 sq ft | 0.092903 m² |
| 2 sq ft | 0.185806 m² |
| 5 sq ft | 0.464515 m² |
| 10 sq ft | 0.92903 m² |
| 20 sq ft | 1.8581 m² |
| 25 sq ft | 2.3226 m² |
| 50 sq ft | 4.6452 m² |
| 100 sq ft | 9.2903 m² |
| 250 sq ft | 23.2258 m² |
| 500 sq ft | 46.4515 m² |
| 1,000 sq ft | 92.903 m² |
Common questions
Is sq ft to m² exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Square metres to Square feet converter.
Mistakes to avoid
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Background
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
For any value, use the Square feet to Square metres Converter or browse all area converters.
Run your own numbers: Square feet to Square metres Converter