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.
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Show this value in all 25 area units
- Square kilometers km² 0.004 046 856 422 4
- Square hectometers hm² 0.404 685 642 24
- Square decameters dam² 40.468 564 224
- Square meters m² 4046.856 422 4
- Square decimeters dm² 404 685.642 24
- Square centimeters cm² 40 468 564.224
- Square millimeters mm² 4 046 856 422.4
- Square micrometers µm² 4 046 856 422 400 000
- Square nanometers nm² 4.0468564224e+21
- Hectares ha 0.404 685 642 24
- Ares a 40.468 564 224
- Decares daa 4.046 856 422 4
- Square inches in² 6 272 640
- Square feet ft² 43 560
- Square yards yd² 4840
- Square miles mi² 0.001 562 5
- Acres ac 1
- Roods ro 4
- Square rods rd² 160
- Sections section 0.001 562 5
- Townships twp 0.000 043 402 777 777 8
- Roofing squares sq 435.6
- Circular mils cmil 7 986 573 297 890
- Barns b 4.0468564224e+31
- Tsubos 坪 1224.174 067 78
Every row is Acre (ac) converted through the square meter, in exact rational arithmetic.
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.