Area Converter

Convert between square meter, acre, hectare, square mile, square foot, and many other area units with scientific precision.

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Area Units Explained

Square Meter (m²)

The SI unit of area, equal to a square with sides of one meter. 1 m² = 10.764 ft².

Common uses: Building floor plans, room dimensions, construction, land surveys, property pricing.

Square Kilometer (km²)

Large area unit. 1 km² = 1,000,000 m² = 100 hectares. Used for geographic regions.

Common uses: City areas, country regions, forest areas, geographic data.

Hectare (ha)

Metric unit for large land areas. 1 ha = 10,000 m² = 2.471 acres. Standard for agriculture.

Common uses: Farm sizes, forest management, agricultural plots, land development.

Acre (ac)

Imperial unit for land area. 1 ac = 4046.86 m² = 0.4047 ha. Standard in USA and Commonwealth.

Common uses: Real estate property, farm land, land surveying, property deeds.

Square Mile (mi²)

Large imperial area unit. 1 mi² = 640 acres = 259 hectares. Used for geographic areas.

Common uses: City/county areas, land statistics, geographic regions.

Square Foot (ft²)

Common imperial unit. 1 ft² = 0.092903 m². Standard for building and room dimensions.

Common uses: Building floor plans, apartment size, property listings, carpet/tile installation.

Square Yard (yd²)

Imperial unit equal to 9 square feet. 1 yd² = 0.8361 m². Used in landscaping and textiles.

Common uses: Lawn areas, fabric measurements, landscaping projects, yard size.

Square Inch (in²)

Small imperial unit. 1 in² = 645.16 mm². Used for precise measurements.

Common uses: Electronics components, manufacturing, screen sizes, precision parts.

Are (a)

Metric unit for land areas. 1 a = 100 m². Used in some European countries.

Common uses: Land measurement in metric countries, property surveys.

Section

US land surveying unit. 1 section = 1 mi² = 640 acres. Used in township surveys.

Common uses: Land surveying, property deeds, government land management, township grids.

Township

Large surveying unit. 1 township = 36 sections = 36 mi². US Public Land Survey System.

Common uses: Land surveying, government property division, state/county administration.

Rood

Historical land unit. 1 rood = 1/4 acre = 1011.71 m². Used in UK historic property deeds.

Common uses: Historic property records, UK land measurements, traditional surveying.

Barn (b)

Nuclear physics unit. 1 barn = 10⁻²⁸ m². Used to measure atomic nucleus cross-sections.

Common uses: Nuclear physics, particle physics, atomic scattering cross-sections.

Area Conversions Quick Reference

  • 1 Square Meter: 10.764 ft² = 1.196 yd²
  • 1 Hectare: 10,000 m² = 2.471 acres = 0.00386 mi²
  • 1 Acre: 4046.86 m² = 43,560 ft² = 0.404686 hectares
  • 1 Square Mile: 640 acres = 259 hectares = 2.59 km²
  • 1 Square Foot: 929.03 cm² = 0.092903 m²
  • 1 Square Inch: 6.4516 cm² = 645.16 mm²
  • 1 Section: 1 square mile = 640 acres = 259 hectares
  • 1 Township: 36 square miles = 23,040 acres = 9,324 hectares
  • Typical apartment: 70-100 m² (750-1000 ft²)
  • Average house lot: 400-2000 m² (4,300-21,500 ft²)

Real Estate & Property Measurement Tips

  • US Real Estate: Typically quoted in square feet, with price per sq ft
  • Metric Countries: Land quoted in square meters or hectares
  • Agricultural Land: Usually measured in hectares or acres depending on region
  • Property Deeds: May use multiple units; always verify with official documents
  • Square Footage: In USA, includes interior living space only (not garage)
  • Lot Size: Typically larger than building footprint by 3-10x
  • Usable Area: For commercial, often refers to rentable floor space
  • Building Code Compliance: Area measurements must follow local standards