Convert Square Foot to Square Kilometer (ft² → km²)

Converting square feet to square kilometers is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

1. 1
   Take your value in square feet

   Start with the number of square feet (ft²) you want to convert.
2. 2
   Multiply by 9.29 × 10^-8

   The conversion factor from ft² to km² is 9.29 × 10^-8. Multiply your value by this number.
3. 3
   Read the result in square kilometers

   The result is your value in square kilometers (km²).

Multiply the value in square feet by 9.29 × 10^-8. For the reverse direction, multiply by 10,763,910.

• ✓1 ft² ≈ 0.0929 m². To convert m² to ft², multiply by 10.76.
• ✓For quick mental estimates: 100 ft² ≈ 10 m² (exact: 9.29 m²).
• ✓Commercial leases quote annual rate per ft² — confirm inclusive or per-year.

• ✗Reading a UK property listing's "sq ft" as UK imperial square feet — they are identical to US.
• ✗Treating 1 ft² as just over 1 m² — actually ten times smaller.
• ✗Using ft² and ft interchangeably — one is area, the other length.

What is the Square Foot?

The square foot equals exactly 0.09290304 square meters and is the standard unit for American and British residential and commercial real estate. US apartments are advertised by total square footage (a typical 2-bedroom apartment is 800–1,200 ft²), and home-improvement projects (flooring, paint coverage, drywall) use square feet for material calculations. Commercial leases quote rates in dollars per ft² per year. The square foot is intuitive for human-scale spaces — a typical office cubicle is about 64 ft² (8 ft × 8 ft). It relates to the square meter (1 ft² ≈ 0.0929 m²), the square yard (9 ft² = 1 yd²), the square inch (144 in² = 1 ft²), and the acre (43,560 ft² = 1 acre). Outside the US and UK, square meters dominate; within them, the square foot is the everyday property unit.

• US home interior floor areas
• US commercial office lease pricing
• Retail space in US shopping malls

What is the Square Kilometer?

The square kilometer equals 1,000,000 square meters (or 100 hectares) and is the international standard for measuring large areas: cities, national parks, lakes, watersheds, and country-level statistics. Population density is conventionally given in people per km² (e.g., Singapore has roughly 8,400 people/km², Mongolia has fewer than 2). The largest US national park, Wrangell-St. Elias in Alaska, covers about 53,000 km². France is 643,801 km², and the largest country, Russia, spans 17 million km². The square kilometer relates to the square meter (1 km² = 1,000,000 m²), the hectare (1 km² = 100 ha), the square mile (1 km² ≈ 0.386 mi²), and the acre (1 km² ≈ 247.1 acres). Geographic information systems, climate science, and regional planning all rely on square kilometers as the base unit for area.

• Country and city geographic area reporting
• National-park and protected-area sizes
• Large-scale environmental studies (deforestation, etc.)