Square feet to square metres Converter

How many square metres are in a square foot?

One square foot is 0.092903 square metres. The full conversion is square metres = square feet × 0.09290304, and going the other way you divide instead of multiply.

A few anchor values worth memorising: 0.092903 m² to the square foot, 0.92903 m² to ten, and 9.290304 m² to a hundred. The calculator above handles the rest, including the awkward decimals.

The reference table under the converter lists the values people look up most often, so for a common figure you can read the answer off directly rather than typing anything.

Worked examples

Three worked examples, each multiplying by 0.09290304:

2.5 ft² × 0.092903 = 0.2323 m². 25 ft² × 0.092903 = 2.3226 m². 250 ft² × 0.092903 = 23.2258 m².

To reverse any of them, divide instead of multiplying — or use the swap button above, which does the same thing without the arithmetic. Reversing a converted value should return you to exactly what you started with; if it does not, something has been rounded too early.

Doing this conversion in your head

The exact factor is 0.09290304, which nobody multiplies by in their head. It is very close to 1/11, so multiplying by 1 and dividing by 11 lands within 2.15% of the correct answer — accurate enough for anything short of engineering work.

Since the factor is less than one, the number always gets smaller: a square foot is larger than a square metre, so any quantity converts to fewer of them. A result larger than what you started with means the conversion went the wrong way.

That sanity check catches the majority of real conversion errors. Before trusting any converted figure, ask whether the direction of change makes sense — it takes a second and it is the single most effective safeguard there is.

When you need to convert square feet to square metres

Converting square feet into square metres is rarely done for its own sake — there is usually a form, a spec or a recipe on the other end of it.

On the source side, square feet are property listings in the US, UK and India, and paint and flooring coverage. On the target side, square metres are property listings, flooring quantities and land areas outside the US. The conversion is essentially a translation between those two worlds — most often because a figure produced in one context has to be understood, submitted or acted on in the other.

Where the converted figure will be cut, dosed, billed or filed, round once at the end rather than at each step. For a rough sense of scale, round freely.

Whatever the reason, the arithmetic runs in your browser. Nothing you type is transmitted, logged or stored, and the converter keeps working if you go offline after the page has loaded.

What a square foot and a square metre actually are

The square foot (ft²). The property unit of the US, UK and India.

The square metre (m²). The SI unit of area and the standard for property listings outside the US.

Since square feet and square metres both quantify area against a common defined standard, nothing is lost in translating between them. The only imprecision anywhere in this page is deliberate rounding for readability.

Common mistakes when converting square feet to square metres

Watch the direction. Because square foot and square metre are close enough in magnitude to look interchangeable at a glance, converting the wrong way is easy and rarely obvious from the result alone. Check that the number moved the way you expected before using it.

For a batch of figures, set the units once and work down the list rather than converting via a third unit — each intermediate step introduces its own rounding.