Area Unit Conversion: A Quick Reference Guide
Area units vary widely by region and context. The US uses square feet (ft²) for buildings and acres for land. Most of the world uses square meters (m²) and hectares (ha). Real estate listings, land surveys, and construction documents often mix units, making a reliable converter essential when comparing properties or planning projects across different measurement systems.
Key Conversion Reference Points
1 m² = 10.764 ft² / 1 acre = 43,560 ft² = 4,047 m² = 0.405 ha / 1 hectare = 10,000 m² = 2.471 acres / 1 km² = 100 ha = 247.1 acres / 1 square mile = 640 acres = 2.59 km². A typical suburban US home lot is 0.1–0.5 acres (4,356–21,780 ft²); a typical UK home lot is 0.04–0.1 acres.
US Real Estate: Square Feet to Acres
A 2,000 ft² home sits on a lot separate from the house footprint. A quarter-acre lot (10,890 ft²) is standard in many suburbs. An acre contains roughly the area of an American football field without the end zones. Farmland is typically measured in acres and sold in parcels of 40, 80, or 160 acres.
Metric System: m² and Hectares
Square meters are the standard for residential and commercial floor space in metric countries. Hectares are used for agricultural land — a 100-hectare farm is 1 km². Urban parks are typically measured in hectares; Central Park in New York covers about 341 hectares (843 acres).
Frequently Asked Questions
1 acre is about 208 × 208 ft (63 × 63m), roughly the size of a standard city block in many US cities, or just under an American football field.
Multiply by 10.764. A 90 m² apartment is 969 ft²; a 150 m² home is 1,615 ft².