📐 Area Converter
Convert square feet, acres, hectares, square meters, square miles, and more.
Enter a value above to see the result
Common Area Conversions
| Input | Unit | Result | Unit |
|---|---|---|---|
| 1 | Acre | 4046.8564 | Square Meter |
| 1 | Hectare | 2.4710538 | Acre |
| 1 | Square Mile | 2.5899881 | Square Kilometer |
| 1 | Square Mile | 640 | Acre |
| 1000 | Square Foot | 92.90304 | Square Meter |
| 1 | Square Kilometer | 100 | Hectare |
Formula Reference
Area scales as the square of length: 1 km² = 1,000,000 m² (not 1,000 m²) 1 mi² = 640 ac • 1 ac = 43,560 ft² • 1 ha = 10,000 m²
About Area Conversions
Area measures the size of a two-dimensional surface. It is most commonly encountered in real estate (how large is that apartment in square feet?), agriculture (how many acres or hectares does that farm cover?), and geography (how many square kilometers is that country?). Getting these conversions right matters for property decisions and land planning.
In the metric system, the square meter (m²) is the base unit. Hectares (10,000 m²) are widely used for land area in agriculture and urban planning around the world. In the US, square feet are standard for interior spaces, and acres (43,560 ft²) describe land parcels. One square mile contains exactly 640 acres.
Area units behave differently from length units when converting: they scale as the square of their length counterparts. One square kilometer is not 1,000 square meters — it is 1,000,000 square meters. This means a seemingly small change in linear dimensions produces a much larger change in area, which is why this converter is especially useful for avoiding calculation errors.
Frequently Asked Questions
How many square feet are in an acre?
One acre equals exactly 43,560 square feet. The acre originally represented the amount of land a yoke of oxen could plow in a single day. As a rough comparison, a standard American football field (without end zones) is about 48,000 square feet — slightly over one acre.
How many acres are in a square mile?
There are exactly 640 acres in one square mile. This relationship is straightforward: 1 mile = 5,280 ft, so 1 mi² = 5,280 × 5,280 = 27,878,400 ft². Divide by 43,560 ft² per acre and you get exactly 640.
What is a hectare?
A hectare is a metric unit of area equal to 10,000 square meters, or 100 meters × 100 meters. It equals approximately 2.471 acres. Hectares are the standard unit for agricultural land and urban planning in most metric countries.
How many square meters are in a square foot?
One square foot equals approximately 0.0929 square meters. Conversely, one square meter equals approximately 10.764 square feet. This relationship matters when comparing apartment sizes advertised in different countries.
Why do area units produce such large numbers when converting?
Because area scales as the square of linear dimensions. For example, there are 100 centimeters in a meter, but 10,000 square centimeters in a square meter (100 × 100). Similarly, 1 km has 1,000 meters, but 1 km² has 1,000,000 m². Always square the linear conversion factor when working with area.
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All conversion results are provided for general informational purposes only. Our formulas use internationally recognized conversion factors; however, rounding may affect precision. Do not rely on these results for professional, medical, legal, or engineering decisions without independent verification. Read our full disclaimer.