Convert Acres to Square Meters
Acres to square meters is the conversion you reach for when a plot of land is measured in acres but you think in metric. One acre is exactly 4046.8564224 square meters, so the number always gets a lot bigger when you switch from acres to square meters.
Acres to Square meters conversion table
| Acres (ac) | Square meters (m²) |
|---|---|
| 1 | 4,046.856422 |
| 2 | 8,093.712845 |
| 3 | 12,140.569267 |
| 5 | 20,234.282112 |
| 10 | 40,468.564224 |
| 20 | 80,937.128448 |
| 50 | 202,342.82112 |
| 100 | 404,685.64224 |
| 500 | 2,023,428.2112 |
| 1,000 | 4,046,856.4224 |
The formula
To convert acres to square meters, multiply the number of acres by 4046.8564224:
square meters = acres × 4046.8564224
A worked example
Say you have a 2-acre plot and you want its size in square meters:
2 × 4046.8564224 = 8093.7128448 m²
So 2 acres is a little over 8,093 square meters.
Why the number is exact
The acre and the square meter come from two different measurement systems, but the units underneath them are tied together precisely: one international foot is defined as exactly 0.3048 meters. Since an acre is built up from feet, that exact relationship carries straight through, making every acres-to-square-meters conversion exact rather than an approximation.
When you'll use it
Reading international property listings, filling in land area on metric forms, comparing US and metric plot sizes, and working with survey or planning data that mixes the two systems.
Frequently asked questions
How many square meters are in an acre?
Exactly 4046.8564224 square meters. This isn't a rounded guess — the acre is defined against the international foot, so the conversion works out to an exact figure every time.
Is the acres to square meters conversion exact?
Yes. Because the acre is defined in terms of feet, and a foot is exactly 0.3048 meters, the whole conversion lands on an exact number: 4046.8564224 square meters per acre. Any rounding you see is only in how the answer is shown.
How big is an acre in real terms?
An acre is about the size of a US football field without the end zones — a little over 4,000 square meters. It's a handy mental picture when a listing quotes land in acres.