What is a square foot? What is a square meter?
The square foot
A square foot is the area of a square that measures one foot on every side. It is the unit American real estate runs on. Listings quote it, appraisers price by it, flooring is sold by it, and building codes set minimum room sizes in it. A US kitchen is typically somewhere between 150 and 250 sq ft. A one-car garage is about 250 sq ft. The abbreviations you will see on a floor plan are ft², sq ft, sqft, and sometimes just SF on a contractor's quote.
The square meter
A square meter is the area of a square one meter on each side, and it is what almost everyone outside the United States uses for the same job. Property portals in Europe, Asia, Australia and Latin America quote m². So do architects, so do international building standards, and so does every piece of furniture documentation written outside North America. A square meter is noticeably bigger than a square foot — 10.76 times bigger — which is why the numbers shrink so much when you cross over. A 1,500 sq ft house is a 139 m² house. Same floor, different label.
The two units are linked by one exact number. Since the 1959 International Yard and Pound Agreement, a foot has been defined as exactly 0.3048 meters. Not approximately. Exactly. Square both sides of that definition and you get the area ratio, which is also exact: 1 ft² = 0.09290304 m². That is the entire conversion, and it is what the square feet to square meters converter above runs on. Every other figure on this page — acres, hectares, square yards — falls out of the same definition.
How square feet to square meters conversion works
One multiplication. Take the area in square feet and multiply it by 0.09290304.
m² = ft² × 0.09290304 — because one foot is exactly 0.3048 m, and 0.3048 × 0.3048 = 0.09290304. Going back the other way, multiply square meters by 10.7639.
Worked example. Say you are looking at a bedroom that measures 12 feet by 15 feet, and the furniture you want to buy is listed in metric.
First get the area in square feet: 12 × 15 = 180 sq ft. Then convert: 180 × 0.09290304 = 16.72 m². Type 180 into the converter and that is exactly what comes back, along with a second line telling you the room would be 4.09 meters on each side if it were square — which it isn't, but that gives you a distance you can picture instead of an area you can't.
The reverse direction is worth knowing because it is the one that isn't exact. One square meter is 10.763910416709722 square feet, and those digits keep going, because the reciprocal of 0.09290304 doesn't terminate. For a floor plan, 10.764 is more precision than your tape measure deserves. So 100 m² is 1,076.4 sq ft, and 50 m² is 538.2 sq ft.
One thing the formula quietly assumes: you already have an area. If you are holding two side measurements, multiply them together first. If you are holding a set of rooms, add them up first — the square footage calculator handles the adding for you and reports the total in both systems.
Common square feet to square meters conversions
These are the sizes people actually type. Square yards are included because US carpet and turf are still priced by the yard, and the last row is one acre, which is 43,560 sq ft by definition.
| Square feet | Square meters | Square yards | Roughly the size of |
|---|---|---|---|
| 100 sq ft | 9.29 m² | 11.11 | A small bathroom or a walk-in closet |
| 250 sq ft | 23.23 m² | 27.78 | A one-car garage |
| 500 sq ft | 46.45 m² | 55.56 | A studio apartment |
| 750 sq ft | 69.68 m² | 83.33 | A one-bedroom apartment |
| 1,000 sq ft | 92.9 m² | 111.11 | A two-bedroom apartment |
| 1,200 sq ft | 111.48 m² | 133.33 | A small three-bedroom home |
| 1,500 sq ft | 139.35 m² | 166.67 | A standard family house |
| 2,000 sq ft | 185.81 m² | 222.22 | A four-bedroom house |
| 2,500 sq ft | 232.26 m² | 277.78 | A large family home |
| 3,000 sq ft | 278.71 m² | 333.33 | A big suburban house |
| 5,000 sq ft | 464.52 m² | 555.56 | A small retail unit |
| 10,000 sq ft | 929.03 m² | 1,111.11 | A 100 ft by 100 ft lot |
| 43,560 sq ft | 4,046.86 m² | 4,840 | Exactly one acre |
Two patterns are worth pulling out of that table. The first is that the square-meter figure is always a bit less than a tenth of the square-foot figure — 1,000 goes to 92.9, not 100. That gap is 7.6%, and it is the same 7.6% at every size, which makes it the most useful thing to memorize on this page.
The second is that the round numbers are on the wrong side. Every tidy square-foot value converts to an untidy metric one, and the reverse is just as true: 100 m² is 1,076.39 sq ft. There is no size where both systems agree on something clean. The one exception is the acre, which comes out at exactly 4,046.8564224 m² — exact, because the acre is defined in square feet and square feet are defined in meters. If land rather than floors is what you're measuring, the square feet to acres converter takes the same input.
When you'll need to convert square feet to square meters
Reading a property listing from another country. This is the most common reason people land here. A flat advertised at 74 m² in Lisbon means nothing to someone who thinks in square feet, and it takes one conversion to learn it's about 797 sq ft — roughly a US one-bedroom.
Ordering flooring, tile or paint from an overseas supplier. US measurements, metric quote. Getting this backwards is expensive in a way that most unit mix-ups aren't, because you find out when the pallet arrives. The tile calculator handles the box-count side of the same job.
Filling in a form that demands metric. Visa applications, international insurance paperwork, energy-performance certificates and customs declarations all tend to want m², regardless of what your deed says.
Comparing two homes measured in different systems. When one listing says 1,800 sq ft and the other says 150 m², you cannot eyeball which is larger. Convert the first and you get 167.23 m², so it wins by about 11%.
Edge cases and gotchas
Never multiply an area by 0.3048. This is the single most common error in this conversion. That number converts lengths. Apply it to 180 sq ft and you get 54.9, which is more than three times too large. Area scales with the square of the length, so the area factor is the square of the length factor. Convert the sides with the feet to meters converter and multiply, or convert the area with 0.0929 — but don't mix the two.
Dividing by 10 is always 7.6% high. It's a fine estimate for a closet and a bad one for a house. On a 2,000 sq ft home, "divide by 10" gives you 200 m² when the real answer is 185.81 — an imaginary 14 square meters. On a 3,000 sq ft house the phantom grows to 21 m², which is a whole extra bedroom of floor that doesn't exist.
Square yards and square meters are not interchangeable. A yard and a meter are only 8.6% apart in length, but squaring widens the gap: one square meter is 1.196 square yards. Order carpet in square yards against a square-meter quote and you'll be about a sixth short.
The US survey foot doesn't matter here. Until the end of 2022 the United States kept a second foot for land surveying, about 2 parts per million longer than the international one. On a 2,000 sq ft house the two definitions differ by less than 0.001 m². It has now been retired, and this converter uses the international definition — the one in deeds, listings and codes.
Watch the comma. "1,250" means one thousand two hundred fifty in the US and one-point-two-five across much of Europe. The converter reads it the US way and says so when the input is ambiguous, which matters on a page whose whole audience is crossing between the two conventions.
Related area and length converters
Once you have square meters, the next question is usually a different unit or a different shape. For land, the square feet to acres converter covers deeds and lots; one acre is 43,560 sq ft or 0.4047 hectares. For rooms you still have to measure, the square footage calculator adds up several spaces in feet, inches, meters or centimeters and totals them in both systems.
For the side measurements themselves, use feet to meters or the reverse with meters to feet. For anything that isn't a rectangle — triangles, circles, trapezoids — the area calculator does the geometry first, and you can bring the square-foot result back here.
Each of those is its own page that does one job. The usual version of this conversion is a mode buried three menus deep in a unit suite that wants your email before it will multiply two numbers, or a spreadsheet template behind a download and a trial countdown. Multiplying by 0.09290304 is not a feature worth a subscription. It's a page that loads, answers, and lets you leave. Microapp also gives 10% of every dollar it earns to charity, off the top and audited quarterly, which is a better use of the money than a paywall around arithmetic.
Frequently asked questions
What is 2,000 square feet in square meters?
185.81 m², or 185.80608 if you want every digit. That's a four-bedroom US house, and it would be listed as a 186 m² property anywhere metric. The equivalent square is 13.63 meters on each side.
How many square feet is 100 square meters?
1,076.39 sq ft. The multiplier for the reverse direction is 10.7639, and unlike the forward one it's a rounded number — the exact value runs on forever. Three decimal places is far more than a floor plan needs.
Square meters or square metres — is there a difference?
None at all. "Meter" is the US spelling and "metre" is the international one, used in the UK, Ireland, Australia, Canada and the SI standard itself. Same unit, same 0.09290304, same answer. The converter accepts both spellings if you type the unit after the number.
Can I type "1,500 sq ft" with the comma and the unit?
Yes. The converter reads commas, decimals, fractions like 1/2, and a trailing sq ft, sqft, ft², ft2 or square feet. If you accidentally paste a value that's already in square meters, acres or hectares, it tells you rather than converting it twice.
My listing says 93 m² and the floor plan says 1,000 sq ft. Which is right?
Both, near enough. 1,000 sq ft is 92.9 m², which rounds to 93. Listings almost always round to whole square meters. A gap of one or two is rounding; a gap of ten or more usually means the two figures are measuring different things — one might include a balcony, a garage or interior wall thickness and the other might not.
How many decimals should I keep?
Two is the listing convention and the converter's default for anything above 1 m². For a flooring order, round up to the next whole square meter and add your waste allowance on top. Below 1 m² the tool keeps four decimals, because a single square foot is 0.0929 m² and rounding that to 0.09 would throw away the only figure you typed.
Does this work for land as well as floors?
Yes — the math doesn't care what the area is. The converter shows acres and hectares alongside square meters for exactly that reason, since overseas land listings are usually quoted in hectares. One hectare is 10,000 m², which is 107,639 sq ft or about 2.47 acres.