The **Square Meter** is an area measurement that corresponds to a square one meter long by one meter wide. Sometimes on the Internet, we can find questions like "One square meter equals how many meters?". Well, a common error in calculations involving areas is to treat this measure as a linear measure, but this is a quadratic measure, so a square with 5 m of side has an area of not 5 m², but 25 m². Unfortunately, for lack of knowledge, many people do not correctly distinguish these two concepts. This unit of measurement is widely used in measuring rooms, kitchens, bedrooms, etc. And for that reason it is common to see his appointment whenever we are dealing with the plan of an apartment or a house. This is a very important measure for the real estate market, since the value of real estate is often calculated, depending on the price of square meter, of the area where the property is.

The **Square Kilometer** is a unit of surface measure, which corresponds to the area of a square with a kilometer of side. This measure is equivalent to one million square meters, or even to one hundred hectares. In many of the medieval cities of Europe, the area that was protected by the walls that surrounded the city, was about one square kilometer. With an area of 59.1 km², Manhattan has a population of 1,640,000. This gives an average of 27,750 people/km², which makes it one of the most densely populated areas on the planet!

`km^2=(m^2)/1000000`

m2 to km2 | m2 to km2 |
---|---|

100 m² = 0,0001 km² | 2500 m² = 0,0025 km² |

200 m² = 0,0002 km² | 5000 m² = 0,0050 km² |

300 m² = 0,0003 km² | 10000 m² = 0,0100 km² |

400 m² = 0,0004 km² | 25000 m² = 0,0250 km² |

500 m² = 0,0005 km² | 50000 m² = 0,0500 km² |

600 m² = 0,0006 km² | 100000 m² = 0,1000 km² |

700 m² = 0,0007 km² | 200000 m² = 0,2000 km² |

800 m² = 0,0008 km² | 250000 m² = 0,2500 km² |

900 m² = 0,0009 km² | 500000 m² = 0,5000 km² |

1000 m² = 0,0010 km² | 1000000 m² = 1 km² |

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