Convert acres to square meters
1 ac = 4046.8564224 m² — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
4046.856 422 4m²
Exact decimal: 4046.8564224
As a fraction: 316160658/78125
1 ac = 4046.8564224 m²
How to convert acres to square meters
Multiply the number of acres by 4046.8564224 to get square meters.
The exact factor is 4046.8564224 — as a fraction, 316160658/78125.
Acre: Exactly 4840 square yards — historically a day of ploughing.
Acre to Square meter conversion table
| Acres (ac) | Square meters (m²) |
|---|---|
| 1 ac | 4046.8564 |
| 2 ac | 8093.7128 |
| 3 ac | 12 140.569 |
| 5 ac | 20 234.282 |
| 10 ac | 40 468.564 |
| 20 ac | 80 937.128 |
| 25 ac | 101 171.41 |
| 50 ac | 202 342.82 |
| 100 ac | 404 685.64 |
| 250 ac | 1 011 714.1 |
| 500 ac | 2 023 428.2 |
| 1000 ac | 4 046 856.4 |
Square meter to Acre conversion table
| Square meters (m²) | Acres (ac) |
|---|---|
| 1 m² | 0.000 247 105 38 |
| 2 m² | 0.000 494 210 76 |
| 3 m² | 0.000 741 316 14 |
| 5 m² | 0.001 235 526 9 |
| 10 m² | 0.002 471 053 8 |
| 20 m² | 0.004 942 107 6 |
| 25 m² | 0.006 177 634 5 |
| 50 m² | 0.012 355 269 |
| 100 m² | 0.024 710 538 |
| 250 m² | 0.061 776 345 |
| 500 m² | 0.123 552 69 |
| 1000 m² | 0.247 105 38 |
Frequently asked
How many square meters are in a acre?
One acre equals 4046.856422 square meters (ac → m²). That figure is exact, not rounded.
How do you convert acres to square meters?
Multiply the number of acres by 4046.8564224 to get square meters.
What is 1 m² in acres?
One square meter is 0.0002471053815 acres.
What is 10 ac in m²?
10 ac = 40 468.564 m².
What exactly is a acre?
Exactly 4840 square yards — historically a day of ploughing.