Square Feet to Square Meters
Convert square feet to square meters instantly. Free, fast, no signup.
How to use this tool
- Enter square feet in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your square meters and the full breakdown beneath it.
Convert square feet to square meters instantly. Free, fast, no signup.
Formula
Square Meters = Square Feet × 0.09290304
m² = ft² × 0.09290304
Since 1 foot = 0.3048 m exactly, 1 square foot = 0.30482 = 0.09290304 m² exactly.
How it works
Area scales as the square of the linear dimension. Because 1 foot = 0.3048 metres, squaring both sides gives 1 ft² = (0.3048)² m² = 0.09290304 m² exactly. Multiplying any square-foot area by this factor produces the exact equivalent in square metres.
A common mistake is using the linear foot-to-metre ratio (0.3048) directly on an area, which gives a result that is far too large. Area units must use the squared conversion factor; failing to square it yields a number roughly 3.28× too high.
Worked example
Convert 1 square foot to square meters
- Start with 1 ft².
- Apply the squared linear factor: 1 × (0.3048)² = 1 × 0.09290304.
- Round to 4 decimal places: 0.0929.
1 ft² = 0.0929 m²
Common mistakes to avoid
- Multiplying length and width individually in feet, converting each to meters, then multiplying — forgetting to square the linear factor 0.3048 is a common error.
- Using 0.093 instead of 0.09290304, which accumulates meaningful error on large floor areas.
- Entering total square footage when the tool expects a single linear dimension.
Key terms
- Square foot (ft²)
- A unit of area equal to the area of a square with sides of 1 foot (0.3048 m). Commonly used in the US and UK for floor area and real estate.
- Square meter (m²)
- The SI unit of area, equal to the area of a square with sides of 1 metre. Standard in most countries for floor plans, land, and construction.
- Linear vs. area conversion
- When converting lengths, you use the linear factor (e.g., 0.3048 for feet to metres). For areas, you must square that factor (e.g., 0.09290304) because area is two-dimensional.
- Exact conversion
- A conversion where no approximation is involved. The foot is defined as exactly 0.3048 m, making the ft²-to-m² factor 0.09290304 exact — not an approximation.
Frequently asked questions
- How do I convert square feet to square meters?
- Multiply the number of square feet by 0.092903 to get square meters.