Area Converter
Convert areas between square meters, hectares, square feet, acres and square miles — the units that appear on floor plans, land titles, listings and maps. Results update as you type; exact factors shown.
One square foot is 0.0929 square meters — see the exact factor, not a rounded rule of thumb.
How the area converter works
Areas convert through the square meter. Because the inch is exactly 25.4 mm, a square foot is exactly 0.09290304 m², an acre (43,560 square feet) is exactly 4,046.8564224 m² and a square mile (640 acres) is 2,589,988.110336 m². A hectare is 10,000 m² by definition.
The US uses customary units (US gallon, short ton, °F) in daily life; NIST SP 811 gives the exact SI factors.
Common area conversions
| From | To | Units |
|---|---|---|
| 1 m² | 10.7639 ft² | square meter to square feet |
| 1 ft² | 0.0929 m² | square foot to square meters |
| 1 ha | 2.4711 ac | hectare to acres |
| 1 ac | 0.4047 ha | acre to hectares |
| 1 km² | 0.3861 mi² | square kilometer to square miles |
| 1 ac | 4,046.8564 m² | acre to square meters |
| 100 m² | 1,076.391 ft² | square meters to square feet |
| 1,000 ft² | 92.903 m² | square feet to square meters |
| 1 in² | 6.4516 cm² | square inch to square centimeters |
| 1 yd² | 0.8361 m² | square yard to square meters |
Units in this converter and their exact factors
| Unit | Symbol | One unit in square meters |
|---|---|---|
| square millimeter | mm² | 0.000001 square meter |
| square centimeter | cm² | 0.0001 square meter |
| square meter | m² | 1 square meter |
| hectare | ha | 10,000 square meter |
| square kilometer | km² | 1,000,000 square meter |
| square inch | in² | 0.00064516 square meter |
| square foot | ft² | 0.09290304 square meter |
| square yard | yd² | 0.83612736 square meter |
| acre | ac | 4,046.8564224 square meter |
| square mile | mi² | 2,589,988.110336 square meter |
FAQFrequently asked questions about area conversion
How many square feet are in a square meter?
About 10.764 square feet. Exactly, 1 m² = 1 / 0.09290304 ft².
How many acres are in a hectare?
About 2.471 acres. One acre is 0.4047 hectares.
How big is a hectare?
10,000 square meters — a square 100 m on each side, roughly one and a half rugby fields.
How many square meters are in an acre?
4,046.86 m². An acre was historically the area a yoke of oxen could plough in a day.
Are floor areas in listings usually metric or imperial?
Australia and the UK list floor areas in square meters and land in hectares or acres; the US lists floor area in square feet and land in acres.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Institute of Standards and Technology (NIST) — United States's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.