Area Converter

CONVERSIONS

Convert between metric and imperial area units, including acres and hectares. Enter a value and pick the units.

Converted
—
In the target unit.

Usage Tip

Quick anchors: 1 sq m ≈ 10.76 sq ft, 1 acre ≈ 0.405 hectare, 1 hectare ≈ 2.47 acres.

THE MATH
Convert to a base unit, then to the target:
result = value × (from factor ÷ to factor)
Area is length squared, so each conversion factor is the square of the matching length factor.
Common land units: an acre is 43,560 sq ft; a hectare is 10,000 sq m (about 2.47 acres).
Because area goes as length squared, doubling a length quadruples the area.
Acres and hectares are the usual land-area units; a hectare is roughly two and a half acres.
Keep units consistent: sq ft for rooms, acres or hectares for land.
Practical Notes

A common sizing mistake. Doubling a room’s length and width does not double its area — it quadruples it, since area scales with both dimensions at once. If you are estimating material from a single linear measurement, convert to area first rather than simply doubling one side.

Real estate context. An acre is roughly the size of a football field without the end zones — about 43,560 square feet. A hectare, the metric land unit it is usually compared against, is about 2.5 times larger than an acre, which is why hectare figures often look bigger than the acre figure for the exact same plot.

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The calculators and tools on Formula Factory are provided for general guidance and informational purposes only. Results are estimates based on standard formulas and the values you enter — they do not constitute professional engineering, electrical, or architectural advice. Always verify calculations with a qualified professional before making decisions for any safety-critical, code-compliance, or commercial application. Formula Factory makes no representations or warranties as to the accuracy or completeness of any result, and accepts no liability for errors, omissions, or any outcomes arising from reliance on this information.