Acres to Square Meters Converter
Unit ConversionConvert acres to square meters. 1 acre equals exactly 4,046.8564224 square meters, with a conversion table, worked examples and the reverse conversion.
Square Meters
Equivalent area in square meters
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SponsoredThis converter turns acres into square meters (acres to m2). Enter a value and the result updates as you type. 1 acre equals exactly 4,046.8564224 square meters.
One acre is 4,046.8564224 square meters, the exact value NIST gives for the international acre. Some sites show 4,046.856421 or 4,046.86 because they truncated or rounded the factor. This conversion is used when a US or Commonwealth acreage has to be compared with a metric plan, title or listing.
The result is rounded to 2 decimal places, but the factor behind it never is, so long chains of conversions stay accurate. You can type decimals, thousands separators or fractions such as 2 1/2, and the conversion table below lists common values.
How to Convert Acres to Square Meters
To convert acres to square meters, multiply by 4,046.8564224. For example, 3 acres equals exactly 12,140.5692672 square meters.
To go from square meters back to acres, divide by 4,046.8564224. For example, 1,000 square meters is about 0.247105 acres.
Acres to Square Meters Conversion Table
Common values in acres converted to square meters, rounded to 2 decimal places.
| Acres | Square Meters |
|---|---|
| 0.1 ac | 404.69 m² |
| 0.25 ac | 1,011.71 m² |
| 0.5 ac | 2,023.43 m² |
| 1 ac | 4,046.86 m² |
| 1.5 ac | 6,070.28 m² |
| 2 ac | 8,093.71 m² |
| 2.5 ac | 10,117.14 m² |
| 3 ac | 12,140.57 m² |
| 5 ac | 20,234.28 m² |
| 10 ac | 40,468.56 m² |
| 20 ac | 80,937.13 m² |
| 50 ac | 202,342.82 m² |
| 100 ac | 404,685.64 m² |
How Many Square Meters in an Acre
As a square, an acre is about 63.61 meters on each side. As a strip, it is 1 chain by 1 furlong: NIST gives the chain as 20.1168 meters and the furlong as 201.168 meters, and their product is the acre. Any shape works as long as the area adds up.
Those lengths come from the foot, and the Length Converter turns chains of 66 feet or furlongs of 660 feet into meters. A price per acre divides by 4,046.8564 to give a price per square meter, which the Price per Square Meter Calculator works with.
Frequently Asked Questions
How many square meters is 4 acres?
4 acres equals exactly 16,187.4256896 square meters.
How many square meters is 40 acres?
40 acres equals exactly 161,874.256896 square meters.
How many hectares is 1 acre?
1 acre equals exactly 0.40468564224 hectares.
How many square meters is 7 acres?
7 acres equals exactly 28,327.9949568 square meters.
What happens if I enter a negative number?
The result shows a dash. An area is a size, so it is never below zero; a negative value usually means a typing mistake, such as a stray minus sign.
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