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Area
Square meters to Acres
Convert square meters (m²) to acres (ac). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 m² = 0.000247 ac
Square meters to Acres Conversion Table
Common values, ready to copy:
| square meters | acres |
|---|---|
| 1 m² | 0.000247 ac |
| 2 m² | 0.000494 ac |
| 5 m² | 0.001236 ac |
| 10 m² | 0.002471 ac |
| 25 m² | 0.006178 ac |
| 50 m² | 0.012355 ac |
| 100 m² | 0.024711 ac |
| 1,000 m² | 0.247105 ac |
Formula
acres = square meters × 2.47105163e-4
Area conversions are derived from length: 1 ft² = (0.3048 m)² = 0.092903 m². 1 acre = 4,046.86 m². 1 hectare = 10,000 m² exactly.
About Square meters and Acres
Square meters (m²): One meter squared, the SI derived unit for area. Common uses: Real estate (apartment floor areas), gardening (planted area), solar panel coverage, room dimensions, and almost every non-US construction context.
Acres (ac): An old English unit, originally the area a yoke of oxen could plow in a day; standardized at exactly 4,046.86 m² (43,560 sq ft). Common uses: Land area in the US, UK, and most former British colonies — farm sizes, residential lots, and ranch acreage.
How the conversion works
Area conversions are derived from length: 1 ft² = (0.3048 m)² = 0.092903 m². 1 acre = 4,046.86 m². 1 hectare = 10,000 m² exactly.
The exact relationship is acres = square meters × 2.47105163e-4, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between square meters and acres comes up wherever area measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.