1. Convert to base units
m2 = input value x input unit factor
Every supported area unit is stored as a factor relative to square meters.
Geometry unit converter
Area Unit Converter
Convert area units for drawings, land, construction, mechanical design, material takeoffs, and engineering calculations.
Live area conversion
Convert area units
Enter a value, choose the starting unit, and select a target unit. The full area conversion table updates automatically.
Converted value
All units
Area conversion table
Compare the entered value across SI, imperial, land, and engineering drawing area units.
Common conversions
Useful area conversion factors
| Conversion | Factor | Typical use |
|---|---|---|
| m2 to ft2 | ft2 = m2 x 10.7639104 | Building and layout work |
| ft2 to m2 | m2 = ft2 x 0.09290304 | Metric reports |
| acre to hectare | ha = acre x 0.404685642 | Land area conversion |
| hectare to acre | acre = ha x 2.47105381 | Site and survey data |
| in2 to mm2 | mm2 = in2 x 645.16 | Mechanical drawings |
| km2 to m2 | m2 = km2 x 1,000,000 | Large area estimates |
How it works
Area conversion method
2. Convert to target units
target value = base value / target unit factor
The selected result and table values are calculated from the same base value.
3. Check precision
rounding depends on scale
Very small and very large values use compact scientific notation to stay readable.
FAQ
Area converter questions
How do you convert square meters to square feet?
Multiply square meters by 10.7639104 to convert to square feet.
How do you convert acres to hectares?
Multiply acres by 0.404685642 to convert acres to hectares.
Why are area factors squared?
Area has two dimensions, so linear conversion factors are squared when converting between area units.
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