How do I convert Square meter (m²) to Square kilometer (km²)?

1 m2 equals 1E-06 km2 using SI-based conversion and precise factors.

What is the formula to convert Square meter (m²) to Square kilometer (km²)?

This is a linear unit conversion using a constant factor between units.

Is Square meter (m²) to Square kilometer (km²) conversion exact?

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

How can I share a direct m2 to km2 result?

Use the shareable URL: http://measurecalc.com/convert/square-meter-to-square-kilometer/1

Convert Square meter (m²) (m2) to Square kilometer (km²) (km2)

Category: Area

Value From To Precision

1E-06 km2

1 m2 = 1E-06 km2

High-precision rounding: 6 decimals

How to convert square meter (m²) to square kilometer (km²)

We convert by pivoting through the SI base unit for Area and applying exact factors where applicable.

Share this conversion: /convert/square-meter-to-square-kilometer/1

Examples

Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).

Common mistakes

Squaring a length conversion factor incorrectly or forgetting to square it.

About Area

Area equals length squared. It appears in real estate, land management, material takeoffs, and GIS. Square meters are SI standard; acres and hectares are common for land reporting in different regions.

About Square meter (m²)

Square meter (m²)

SI unit of area; equals the area of a square 1 m on a side. Used from floor plans to satellite remote sensing products.

History: Defined from the meter; fundamental for land measurement and building codes.

About Square kilometer (km²)

Square kilometer (km²) is a commonly used unit within the Area category.

Related conversions from m2

m2 → acre Acre
m2 → ha Hectare (ha)
m2 → ft2 Square foot (ft²)
m2 → yd2 Square yard (yd²)

Related conversions to km2

acre → km2 Acre
ha → km2 Hectare (ha)
ft2 → km2 Square foot (ft²)
yd2 → km2 Square yard (yd²)