Converting Area Units

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How many square meters are in a hectare? How big is an acre? Convert different area units quickly and easily!

The square meter is a metric unit of area measurement, defined as the area of a square with sides of one meter in length. Its origin dates back to the French Revolutionary era when the metric system was introduced for standardization. The square meter is widely used in everyday life, particularly for measuring real estate and land areas. It plays a crucial role in determining the sizes of living spaces, offices, and other buildings. The use of the square meter helps in precise area calculations, which is essential for construction, real estate transactions, and urban planning.

The hectare is a metric unit of area measurement, equal to 10,000 square meters. Its origin is linked to the introduction of the metric system in France, where the prefix "hecto" means one hundred and "are" refers to a square meter. The hectare is primarily used for measuring agricultural lands, forests, and large plots of land. It is widely used in Europe and other regions where the metric system is standard. The hectare allows for easy and precise measurement of larger areas, which is especially important in land use and agricultural planning.

The square fathom is a traditional unit of area measurement used in the Hungarian measurement system. One square fathom equals approximately 3.59665 square meters. It was originally used for land surveying and the division of agricultural lands, particularly in Hungary and the surrounding regions. The square fathom often appears in old cadastral documents and historical maps where the sizes of estates were marked with it. Although it is less common today, it can still be encountered in rural areas and real estate dealings, especially when working with older records.

The "kataszteri hold", the "hungarian hold", and the English acre are traditional units of area measurement used in different land surveying systems. The "kataszteri hold" is an old Hungarian unit of area measurement, equivalent to 1,600 square fathoms or 5,755.6 square meters. It was primarily used for land surveying and the division of agricultural lands. The "hungarian hold" is also a historical unit of area measurement but slightly larger than the "kataszteri hold". One "hungarian hold" equals 1,200 square fathoms, which is 4,800 square meters. The English acre is a unit used in the imperial system, equivalent to 43,560 square feet, or about 4,046.86 square meters. Originally, it was the area that could be plowed in one day with a yoke of oxen. All three units played significant roles in historical land surveying and agriculture but are now mainly used in historical and specialized contexts.

Converting area units is crucial in daily life and various professional fields. It's important to be familiar with commonly used units such as square meter, hectare, square kilometer, as well as square foot and square mile from the imperial system. On our website, you can easily convert these units between each other, whether it's from square meters to square feet or hectares to square kilometers. Our conversion calculator provides reliable and quick results, ensuring you get accurate data every time. Precise area conversion is vital in real estate, agriculture, or construction projects.


Conversion factors for units of area
square millimeter square centimeter square inch square foot square yard square meter square kilometer square mile hectare square fathom kataszteri hold hungarian hold acre
square millimeter 1 0.01 0.00155 0.00001076 0.0000012 0.000001 1E-12 3.861E-13 1E-10 0.00000028 1.7377E-10 2.317E-10 2.4711E-10
square centimeter 100 1 0.15500031 0.00107639 0.0001196 0.0001 1E-10 3.861E-11 0.00000001 0.0000278 0.00000002 0.00000002 0.00000002
square inch 645.16 6.4516 1 0.00694444 0.0007716 0.00064516 6.4516E-10 2.491E-10 0.00000006 0.00017938 0.00000011 0.00000015 0.00000016
square foot 92 903.04 929.0304 144 1 0.11111111 0.09290304 0.00000009 0.00000004 0.00000929 0.02583043 0.00001614 0.00002153 0.00002296
square yard 836 127.36 8 361.2736 1 296 9 1 0.83612736 0.00000084 0.00000032 0.00008361 0.23247387 0.0001453 0.00019373 0.00020661
square meter 1 000 000 10 000 1 550.00310001 10.76391042 1.19599005 1 0.000001 0.00000039 0.0001 0.27803643 0.00017377 0.0002317 0.00024711
square kilometer 1E+12 1E+10 1.55E+9 10 763 910.41670972 1 195 990.04630108 1 000 000 1 0.38610216 100 278 036.42888899 173.77276806 231.69702407 247.10538149
square mile 2.59E+12 2.59E+10 4.0145E+9 27 878 400 3 097 600 2 589 988.110336 2.58998811 1 258.99881103 720 111.04506275 450.06940316 600.09253755 640.00000006
hectare 1E+10 1E+8 15 500 031.000062 107 639.1041671 11 959.90046301 10 000 0.01 0.00386102 1 2 780.36428889 1.73772768 2.31697024 2.47105381
square fathom 3 596 651 35 966.51 5 574.82019964 38.71402916 4.3015588 3.596651 0.0000036 0.00000139 0.00035967 1 0.000625 0.00083333 0.00088875
kataszteri hold 5.7546E+9 57 546 415.999999 8 919 712.31942448 61 942.44666267 6 882.49407363 5 754.6416 0.00575464 0.00222188 0.57546416 1 600 1 1.33333333 1.42200291
hungarian hold 4.316E+9 43 159 812.000001 6 689 784.23956864 46 456.834997 5 161.87055522 4 315.9812 0.00431598 0.00166641 0.43159812 1 200 0.75 1 1.06650218
acre 4.0469E+9 40 468 564.22 6 272 639.99938 43 559.99999569 4 839.99999952 4 046.856422 0.00404686 0.0015625 0.40468564 1 125.1735078 0.70323344 0.93764459 1