Free online area converter. Convert square feet to square meters, acres to hectares, square miles to square kilometers, and more — instant results with visual bar chart.
Imperial • Metric • 9 units
Convert property sizes between sq ft and sq m for international listings and appraisals.
Convert acres to hectares for USDA reports, international land deals, and crop planning.
Convert between square feet and square meters for flooring, tiling, and material estimates.
Area conversions are essential in real estate, construction, agriculture, and land management. In the United States, property is measured in square feet (for rooms and houses) and acres (for land). Internationally, square meters and hectares dominate. The core conversion: 1 sq ft = 0.0929 sq m, so multiply sq ft by 0.0929 for sq m, or multiply sq m by 10.764 for sq ft. A 2,000 sq ft house = 185.8 sq m.
Acres to hectares: 1 acre = 0.404686 hectares. 1 hectare = 2.47105 acres. The acre (43,560 sq ft) is the standard US land measurement unit. A standard city block in the US is typically about 2.5 acres = 1.01 hectares. A football field (including end zones) is about 1.32 acres = 0.53 hectares.
Small condo: 500 sq ft = 46.5 m². Average US home: 2,300 sq ft = 213.7 m². Large home: 4,000 sq ft = 371.6 m². Mansion: 10,000 sq ft = 929 m². Standard room: 12×12 ft = 13.4 m².
1 acre = 43,560 sq ft = 4,047 m². 1 hectare = 10,000 m² = 2.47 acres. Average US farm: 444 acres = 180 ha. Football field: 1.32 acres. City block: ~2.5 acres.
1 sq mile = 640 acres = 259 ha = 2.59 km². Rhode Island: 1,214 sq mi. Texas: 268,596 sq mi. USA: 3.8 million sq mi = 9.8 million km².
Flooring: 1 sq m = 10.764 sq ft. 500 sq ft floor = 46.45 m². Tile: 12×12 in tile = 1 sq ft = 0.0929 m². Paint: 1 gal covers ~400 sq ft = 37.2 m².
Area units carry more history than most. The acre began as the area a yoke of oxen could plough in a day and was standardised as one chain by one furlong — 66 feet by 660 feet — which is why it is the awkward 4,046.8564224 m² rather than a round number. The hectare, by contrast, was designed to be tidy: 10,000 m², or a square 100 m on a side. Because area scales as the square of length, the conversion factors are the squares of the linear ones, which is why doubling a room's dimensions quadruples its floor area.
square metres = value × factor_fromresult = m² ÷ factor_to1 acre = 4046.8564224 m² · 1 ha = 10,000 m² · 1 ft² = 0.09290304 m²where:
Assumptions: Land measured under the retired US survey foot differs by about 4 parts per million per acre — immaterial for a garden, occasionally material in a boundary dispute.
A 2.5-acre plot expressed in square metres and hectares.
Result2.5 acres = 10,117.14 m² = 1.0117 hectares
The 2.5-acres-to-a-hectare rule of thumb is accurate to 1.2%, close enough for estimating and not for conveyancing. Exactly one hectare is 2.4711 acres.