km² - Square Kilometer. 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 kilometer (Metric). 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 kilometer). 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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  1. Enter the value of your unit (square kilometer).
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Your value (square kilometer, km²):
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Metric

square kilometer to hectare
square kilometer to decare
square kilometer to are (a)
square kilometer to square meter (m²)
square kilometer to square decimeter (dm²)
square kilometer to square centimeter (cm²)
square kilometer to square millimeter (mm²)
square kilometer to barn (b)
Units:  / 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 kilometer to township
square kilometer to square mile
square kilometer to homestead
square kilometer to acre
square kilometer to rood
square kilometer to square rod
square kilometer to perch
square kilometer to square yard (yd²)
square kilometer to square foot (ft²)
square kilometer to square inch (in²)
square kilometer to square mil (th²)
Units: township  / square mile  / homestead  / acre  / rood  / square rod  / perch  / square yard (yd²)  / square foot (ft²)  / 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 kilometer to dulum (дулум) of Bosnia and Herzegovina and Serbia
square kilometer to dynym or dylym of Albania
square kilometer to donum of Cyprus
square kilometer to skales (σκάλες) of Cyprus
square kilometer to stremma (στρέμμα) of Greece
square kilometer to Turkish stremma of Greece
square kilometer to dunam of Iraq
square kilometer to dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon
square kilometer to old (pre 1928) dunam (dönüm, دونم) of Turkey, Syria, Israel, Palestine, Jordan, Lebanon
square kilometer to feddan (فدّان‎) of Egypt, Sudan, Syria, Sultanate of Oman
square kilometer to kirat (قيراط) of Egypt
square kilometer to manzana of Argentina
square kilometer to manzana of Belize
square kilometer to manzana of Costa Rica
square kilometer to manzana of Guatemala
square kilometer to manzana of Honduras
square kilometer to manzana of Nicaragua
square kilometer to cuadra of Argentina
square kilometer to cuadra of Chile
square kilometer to cuadra of Ecuador
square kilometer to cuadra of Paraguay
square kilometer to cuadra of Peru
square kilometer to cuadra of Uruguay
square kilometer to square vara of Panama and Columbia
square kilometer to square vara of Chile, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Peru, São Tomé and Principe, Venezuela
square kilometer to square vara of Cuba
square kilometer to square vara of Argentina, Paraguay, Uruguay
square kilometer 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 kilometer to circular inch
square kilometer to thousand of circular mils (kcmil, MCM)
square kilometer to circular mil (cmil)
Units: circular inch  / thousand of circular mils (kcmil, MCM)  / circular mil (cmil)
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Japanese

square kilometer to shaku (勺)
square kilometer to go (合)
square kilometer to jo (畳)
square kilometer to tsubo (坪)
square kilometer to bu (歩)
square kilometer to se (畝)
square kilometer to tan (段, 反)
square kilometer 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 kilometer to qing (頃 or 顷)
square kilometer to mu (畝 or 亩)
square kilometer to fen (市分)
square kilometer to fang zhang (方丈) (zhang²)
square kilometer to li (釐 or 厘)
square kilometer to hao (毫)
square kilometer to fang chi (方尺) (chi²)
square kilometer 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 kilometer to qing (頃 or 顷)
square kilometer to mu (畝 or 亩)
square kilometer to fen (分)
square kilometer to fang zhang (方丈) (zhang²)
square kilometer to li (釐 or 厘)
square kilometer to hao (毫)
square kilometer to fang chi (方尺) (chi²)
square kilometer 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 kilometer to rai (ไร่)
square kilometer to ngan (งาน)
square kilometer 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 kilometer to Planck area (L²)
Units: Planck area (L²)

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