Acre to Square Meter Converter
Convert acres to square metres. One acre equals about 4,046.86 square metres.
The acre is a traditional unit of land area equal to about 4,046.86 square metres (more precisely 4,046.8564 m²). It is 1/640 of a square mile, or 43,560 square feet. This converter turns acres into square metres, hectares and square feet.
How to convert acres to square metres
Square metres = acres × 4,046.8564
| Acres | Square metres |
|---|---|
| 0.5 acre | 2,023.43 m² |
| 1 acre | 4,046.86 m² |
| 2 acres | 8,093.71 m² |
| 5 acres | 20,234.28 m² |
Worked example
A 2.5-acre plot: 2.5 × 4,046.8564 = 10,117.14 square metres (about 1.01 hectares).
Acre, hectare and square metre
One acre is 0.404686 hectare, so about 2.47 acres make a hectare. Because farmland is quoted in acres in the US, UK and India but in hectares elsewhere, converting to square metres gives a common basis for comparison.
Frequently asked questions
How many square metres in an acre?
About 4,046.86 m² (exactly 4,046.8564).
How many acres is 1,000 m²?
About 0.247 acre (1,000 ÷ 4,046.86).
How many acres in a hectare?
About 2.47105 acres.
Is an acre a fixed size?
Yes — the international acre is fixed at 4,046.8564 square metres.
Related converters
Conversions use standard internationally-agreed factors and are for general guidance.