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Conversion Formula:
Convert Square Kilometer to Square Foot (km² to ft²) instantly with accurate, readable results.
Convert between square meters, acres, square feet, hectares, and other common units with our Area Unit Converter. This intuitive unit conversion tool helps you calculate land size, floor space, and surface area across both metric and imperial systems. Whether you're working on real estate, construction, or geography tasks, our area unit conversion calculator ensures precise and instant results.
Square kilometer (km²) - large SI unit of area
Square kilometer is an SI unit of area equal to the area of a square with sides of 1 kilometer. Used for city sizes, land cover, and geographic mapping.
- Symbol: km²
- System: SI derived unit
- Exact relations: 1 km² = (1000 m)² = 1,000,000 m² = 100 ha = 10⁸ dm² = 10¹⁰ cm² = 10¹² mm²
- Imperial/US equivalents: 1 km² ≈ 0.386102159 mi² ≈ 247.105381 acres
- Typical examples: municipality areas, national park extents, watershed and habitat mapping
Square foot (ft²) - Imperial/US area unit
Square foot is an Imperial/US customary unit of area equal to a square 1 foot on a side. Used for floor space, building plans, and real estate listings.
- Symbol: ft²
- System: Imperial/US customary
- Exact relations: 1 ft² = (0.3048 m)² = 0.09290304 m² (exact) = 144 in²
- Other relations: 1 yd² = 9 ft²; 1 m² ≈ 10.7639104 ft²
- Typical examples: room and apartment areas, carpet/laminate coverage, HVAC load calculations