Convert Square foot (ft²) (ft2) to Square kilometer (km²) (km2)
Category: Area
1 ft2 = 0 km2
High-precision rounding: 6 decimals
How to convert square foot (ft²) to square kilometer (km²)
We convert by pivoting through the SI base unit for Area and applying exact factors where applicable.
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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 foot (ft²)
Square foot (ft²)
Area of a square 1 ft by 1 ft. Common in real estate listings, tiles, and HVAC sizing in imperial contexts.
History: Tied to the international foot since 1959 to ensure exact conversions to metric areas.
About Square kilometer (km²)
Square kilometer (km²) is a commonly used unit within the Area category.
Related conversions from ft2
- ft2 → acre Acre
- ft2 → ha Hectare (ha)
- ft2 → m2 Square meter (m²)
- ft2 → yd2 Square yard (yd²)
Related conversions to km2
- acre → km2 Acre
- ha → km2 Hectare (ha)
- m2 → km2 Square meter (m²)
- yd2 → km2 Square yard (yd²)