Square meters to Acres Converter
Convert square meters to acres instantly. Exact factor: 1 m² = 0.0002471 acres.
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Convert square meters to acres
The exact conversion factor is 1 m² = 0.0002471 acres. Type any value and the result updates instantly; the math is shown beneath the board.
Worked by hand
Multiply the square meters value by 4,046.9 (that is, 1 ÷ 0.0002471) to get acres.
Worked example
- Take 1 m²
- multiply by 4,046.9
- the result is 0.0002471 acres
How to use it
- Enter your square meters
- Read the acres result
- Check the factor line to verify by hand
Frequently asked questions
How many acres are in one square meters?
Exactly 0.0002471 acres, by the SI/NIST definition.
How do I convert acres back to square meters?
Divide by 0.0002471 — or use the full converter where both directions are one click.
Is this rounding or exact?
The factor is exact; only the displayed decimals are rounded.