ft² - Square Foot. Conversion Chart

This converter features contemporary units of area. There is also a special converter for historical units of area you might want to visit for ancient, medieval and other old units that are no longer used.
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1This is a conversion chart for square foot (British (Imperial) And U.S. System). To switch the unit simply find the one you want on the page and click it.
You can also go to the universal conversion page.
2Enter the value you want to convert (square foot). Then click the Convert Me button.
Your value gets instantly converted to all other units on the page.
3Now find the unit you want and get the conversion result next to it. It's your answer.

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  2. Touch "Convert Me" button.
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Number of significat figures

Do you want rounded off figures or scientifically precise ones? For everyday conversions we recommend choosing 3 or 4 significant digits. If you want maximum precision, set the number to 9

Digit groups separator

Choose how you want to have your digit groups separated in long numbers:

1234567.89none
1 234 567.89space
1,234,567.89comma
1.234.567,89point

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Your value (square foot, ft²):
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Metric

square foot to square kilometer (km²)
square foot to hectare
square foot to decare
square foot to are (a)
square foot to square meter (m²)
square foot to square decimeter (dm²)
square foot to square centimeter (cm²)
square foot to square millimeter (mm²)
square foot to barn (b)
Units: square kilometer (km²)  / hectare  / decare  / are (a)  / square meter (m²)  / square decimeter (dm²)  / square centimeter (cm²)  / square millimeter (mm²)  / barn (b)
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British (Imperial) And U.S. System

square foot to township
square foot to square mile
square foot to homestead
square foot to acre
square foot to rood
square foot to square rod
square foot to perch
square foot to square yard (yd²)
square foot to square inch (in²)
square foot to square mil (th²)
Units: township  / square mile  / homestead  / acre  / rood  / square rod  / perch  / square yard (yd²)  /  / square inch (in²)  / square mil (th²)
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Historical Units Still In Use Today

Some older units managed to survive and are still used nowadays. They were rounded up in accordance to current measurements (either metric or imperial) while keeping their old names. For each of the units below we specify the country where it is in use.
square foot to dulum (дулум) of Bosnia and Herzegovina and Serbia
square foot to dynym or dylym of Albania
square foot to donum of Cyprus
square foot to skales (σκάλες) of Cyprus
square foot to stremma (στρέμμα) of Greece
square foot to Turkish stremma of Greece
square foot to dunam of Iraq
square foot to dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon
square foot to old (pre 1928) dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon
square foot to feddan (فدّان‎) of Egypt, Sudan, Syria, Sultanate of Oman
square foot to kirat (قيراط) of Egypt
square foot to manzana of Argentina
square foot to manzana of Belize
square foot to manzana of Costa Rica
square foot to manzana of Guatemala
square foot to manzana of Honduras
square foot to manzana of Nicaragua
square foot to cuadra of Argentina
square foot to cuadra of Chile
square foot to cuadra of Ecuador
square foot to cuadra of Paraguay
square foot to cuadra of Peru
square foot to cuadra of Uruguay
square foot to square vara of Panama and Columbia
square foot to square vara of Chile, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Peru, São Tomé and Principe, Venezuela
square foot to square vara of Cuba
square foot to square vara of Argentina, Paraguay, Uruguay
square foot to square vara of Brazil
Units: dulum (дулум) of Bosnia and Herzegovina and Serbia  / dynym or dylym of Albania  / donum of Cyprus  / skales (σκάλες) of Cyprus  / stremma (στρέμμα) of Greece  / Turkish stremma of Greece  / dunam of Iraq  / dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon  / old (pre 1928) dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon  / feddan (فدّان‎) of Egypt, Sudan, Syria, Sultanate of Oman  / kirat (قيراط) of Egypt  / manzana of Argentina  / manzana of Belize  / manzana of Costa Rica  / manzana of Guatemala  / manzana of Honduras  / manzana of Nicaragua  / cuadra of Argentina  / cuadra of Chile  / cuadra of Ecuador  / cuadra of Paraguay  / cuadra of Peru  / cuadra of Uruguay  / square vara of Panama and Columbia  / square vara of Chile, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Peru, São Tomé and Principe, Venezuela  / square vara of Cuba  / square vara of Argentina, Paraguay, Uruguay  / square vara of Brazil
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Units for Measuring Wire Gauges

These units are referring to the area of a wire with a circular cross section. One circular mil denote an area, equal to the area of a circle with a diameter of one mil.

You can find a comprehensive list of wire gauge units on our special wire gauge conversion page.

square foot to circular inch
square foot to thousand of circular mils (kcmil, MCM)
square foot to circular mil (cmil)
Units: circular inch  / thousand of circular mils (kcmil, MCM)  / circular mil (cmil)
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Japanese

square foot to shaku (勺)
square foot to go (合)
square foot to jo (畳)
square foot to tsubo (坪)
square foot to bu (歩)
square foot to se (畝)
square foot to tan (段, 反)
square foot to cho (町, 町歩)
Units: shaku (勺)  / go (合)  / jo (畳)  / tsubo (坪)  / bu (歩)  / se (畝)  / tan (段, 反)  / cho (町, 町歩)
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Chinese units of 1930

square foot to qing (頃 or 顷)
square foot to mu (畝 or 亩)
square foot to fen (市分)
square foot to fang zhang (方丈) (zhang²)
square foot to li (釐 or 厘)
square foot to hao (毫)
square foot to fang chi (方尺) (chi²)
square foot to fang cun (方寸) (cun²)
Units: qing (頃 or 顷)  / mu (畝 or 亩)  / fen (市分)  / fang zhang (方丈) (zhang²)  / li (釐 or 厘)  / hao (毫)  / fang chi (方尺) (chi²)  / fang cun (方寸) (cun²)
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Chinese units of 1915

square foot to qing (頃 or 顷)
square foot to mu (畝 or 亩)
square foot to fen (分)
square foot to fang zhang (方丈) (zhang²)
square foot to li (釐 or 厘)
square foot to hao (毫)
square foot to fang chi (方尺) (chi²)
square foot to fang cun (方寸) (cun²)
Units: qing (頃 or 顷)  / mu (畝 or 亩)  / fen (分)  / fang zhang (方丈) (zhang²)  / li (釐 or 厘)  / hao (毫)  / fang chi (方尺) (chi²)  / fang cun (方寸) (cun²)
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Thai units

Some of these units are still in use even though metric system was formally established in 1923. Before the metrication the old units were standartied to exact metric values.
square foot to rai (ไร่)
square foot to ngan (งาน)
square foot to tarang wah (ตารางวา, square wa)
Units: rai (ไร่)  / ngan (งาน)  / tarang wah (ตารางวา, square wa)
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Natural units

In physics, natural units are physical units of measurement based only on universal physical constants. The origin of their definition comes only from properties of nature and not from any human construct.
square foot to Planck area (L²)
Units: Planck area (L²)

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