How to convert acres to square metres
m² = ac × 4,046.856422
Example: 5 ac × 4,046.856422 = 20,234.28211 m²
Acres to Square Meters table
| Acres (ac) | Square Meters (m²) |
|---|---|
| 0.5 ac | 2,023.4282 m² |
| 1 ac | 4,046.8564 m² |
| 2 ac | 8,093.7128 m² |
| 3 ac | 12,140.569 m² |
| 4 ac | 16,187.426 m² |
| 5 ac | 20,234.282 m² |
| 6 ac | 24,281.139 m² |
| 7 ac | 28,327.995 m² |
| 8 ac | 32,374.851 m² |
| 9 ac | 36,421.708 m² |
| 10 ac | 40,468.564 m² |
| 15 ac | 60,702.846 m² |
| 20 ac | 80,937.128 m² |
| 25 ac | 101,171.41 m² |
| 30 ac | 121,405.69 m² |
| 40 ac | 161,874.26 m² |
| 50 ac | 202,342.82 m² |
| 75 ac | 303,514.23 m² |
| 100 ac | 404,685.64 m² |
| 250 ac | 1,011,714.1 m² |
| 500 ac | 2,023,428.2 m² |
| 1,000 ac | 4,046,856.4 m² |
About these units
Acres (ac): An acre is 43,560 square feet, or exactly 4,046.8564224 m². It is the usual unit for farmland and plots in the US, UK and South Asia.
Square Meters (m²): A square metre (m²) is the area of a square 1 metre on each side – the SI unit of area, used for floor space worldwide.
Frequently asked questions
How many square metres are in 1 acre?
1 acre equals 4,046.856422 square metres (m²).
How do I convert ac to m²?
Multiply the value in acres by 4,046.856422. For example, 5 ac × 4,046.856422 = 20,234.28211 m².
How do I convert square metres back to acres?
Multiply by 0.000247105382 (or divide by 4,046.856422). 1 m² = 0.000247105382 ac.
What is an acre?
An acre is 43,560 square feet, or exactly 4,046.8564224 m². It is the usual unit for farmland and plots in the US, UK and South Asia.
Conversion factors come from exact international definitions (NIST SP 811, BIPM) where they exist. Results show up to 10 significant digits. Need every area unit at once? Use the Area Converter.