Area Converter
Convert area between sq mm, sq cm, sq m, sq km, sq ft, sq yd, sq mi, acres, and hectares.
This tool is for informational and educational purposes only. It is not a substitute for professional financial, medical, legal, or engineering advice. See Terms of Service.
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This area converter handles ten common area units: square millimeters, square centimeters, square meters, square kilometers, square inches, square feet, square yards, square miles, acres, and hectares. It is useful for real estate comparisons, construction planning, land measurement, and academic work.
- Enter the area value. Type any positive number into the area field. Decimals are supported for precise measurements.
- Select the source unit. Choose the unit your original area is measured in from the "From" dropdown. For example, select "sq ft" if you have a measurement in square feet.
- Select the target unit. Choose the unit you want to convert to from the "To" dropdown. The result updates instantly whenever you change the value or either dropdown.
- Use the swap button. Click the arrows between the dropdowns to reverse the conversion direction. This is handy when you need the conversion in both directions.
The result card displays the converted area with a formula line showing the full equation. Use Copy to paste the result, or Share to send a pre-filled link to someone else.
About Area Conversion
Area is measured in square units, which represent two-dimensional space. The metric system uses square meters as the base unit, with square kilometers for large regions and square centimeters or square millimeters for small objects. The imperial system uses square feet and square yards for buildings and lots, and square miles for larger regions. Acres are the standard unit for land in the United States and the United Kingdom, where one acre equals 43,560 square feet. Hectares serve the same purpose in metric countries, with one hectare equal to 10,000 square meters or roughly 2.47 acres.
This converter uses square meters as its internal base unit. Every input value is first converted to square meters, then from square meters to the target unit. This keeps rounding consistent and ensures accuracy across all unit pairs.
Frequently Asked Questions
How many square meters is 1,000 square feet?
1,000 square feet equals approximately 92.9 square meters. One square foot is 0.0929 square meters. This conversion is common in real estate when comparing property sizes between countries that use different measurement systems.
How many acres are in a hectare?
One hectare equals approximately 2.471 acres. Conversely, one acre equals about 0.4047 hectares. A hectare is 10,000 square meters, while an acre is 4,046.86 square meters. Both units are commonly used for measuring land and agricultural areas.
How many square feet are in an acre?
One acre contains exactly 43,560 square feet. An acre is also 4,840 square yards or about 4,047 square meters. To visualize an acre, it is roughly the size of a football field without the end zones, which is 48,000 square feet.
What is the difference between square meters and square kilometers?
One square kilometer equals 1,000,000 (one million) square meters. Square meters are used for rooms, buildings, and small plots. Square kilometers are used for cities, regions, and countries. For context, Central Park in New York City is about 3.41 square kilometers, or 3,410,000 square meters.