Formula
ac to m² conversion formula
Use this relationship for a direct conversion:
m² = ac x 4,046.8564224
Worked example
2 ac = 8,093.7128448 m².
Values derived from exact metric and international length definitions.
Area conversion
Convert Acre to Square meter
1 acre (ac) equals 4,046.8564224 square meter (m²). Enter any value below to convert from ac to m².
Enter a value and choose units. Results update instantly.
1 ac = 4,046.8564224 m²
All Area units
From 1 ac| Unit | Value |
|---|---|
| Square meter m² | 4,046.8564224 |
| Square kilometer km² | 0.0040468564 |
| Square centimeter cm² | 40,468,564.2239999995 |
| Square millimeter mm² | 4,046,856,422.4000005722 |
| Square inch in² | 6,272,640 |
| Square foot ft² | 43,560 |
| Square yard yd² | 4,840 |
| Square mile mi² | 0.0015625 |
| Acre ac | 1 |
| Hectare ha | 0.4046856422 |
Recent conversions
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Quick reference
Acre to Square meter table
| Acre (ac) | Square meter (m²) |
|---|---|
| 0.01 | 40.468564224 |
| 0.1 | 404.68564224 |
| 1 | 4,046.8564224 |
| 2 | 8,093.7128448 |
| 5 | 20,234.282112 |
| 10 | 40,468.564224 |
| 25 | 101,171.41056 |
| 50 | 202,342.82112 |
| 100 | 404,685.64224 |
| 1,000 | 4,046,856.4224 |
From unit
About the acre
Exactly 43,560 square feet.
Symbol: ac
To unit
About the square meter
The area of a square with one-meter sides.
Symbol: m²
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Source
Conversion standard
Definitions are checked against NIST SP 811: Area units. Calculations use full internal precision before display rounding.
View the complete area converterQuestions
ac to m² FAQ
How do you convert acre to square meter?
Use the formula m² = ac x 4,046.8564224. 1 acre (ac) equals 4,046.8564224 square meter (m²).
Is the ac to m² conversion exact?
Both unit definitions use exact factors. Only the displayed decimal may be rounded.