Area Converter — Free Online Tool

What Is Area Converter?

A free online area converter. Convert between square meters, square kilometers, square feet, square yards, acres, hectares, square miles, and square inches. Real-time conversion with a full reference table.

Area conversion is frequently needed in real estate, construction, agriculture, and land surveying, where property sizes are quoted in different units depending on the country and context. Area Converter handles eight units covering metric, imperial, and specialized land measurement units used around the world.

The supported units include square meters (m²), square kilometers (km²), square feet (ft²), square yards (yd²), acres, hectares, square miles (mi²), and square inches (in²). Enter a value in any field and all others update in real time. The full reference table makes it easy to see how units relate — for example, how many square feet are in an acre, or how many hectares in a square mile.

Different fields use different units by convention. Real estate in the US uses square feet for houses and acres for land. Agriculture globally uses hectares. Forestry and large-scale land management use hectares or square kilometers. Urban planning uses acres or hectares. The tool bridges these systems, letting you convert any area measure to any other unit.

The relationship between units involves large multipliers compared to length conversions. An acre is 43,560 square feet. A hectare is 10,000 square meters. A square mile is 640 acres. These large numbers make mental conversion impractical for most people, which is where the tool provides the most value — eliminating arithmetic errors that can have significant real-world consequences in property transactions and land management.

Real-World Use Cases for Area Converter

Converting a Property Listing from Square Feet to Square Meters

A US property listing shows 2,500 square feet, but you are familiar with square meters. Enter 2,500 in the square feet field to get 232.26 square meters. Now you have a better sense of the apartment size. For land, convert 0.5 acres to 2,023 square meters or 0.202 hectares.

Converting Agricultural Land Area for International Comparison

A farm in the US is 160 acres. A similar property in Europe is listed as 65 hectares. Enter 160 acres to get 64.75 hectares — almost the same size. The converter helps you compare land values across countries that use different area units.

Calculating Floor Area for Construction Material Estimates

A construction project has a floor plan of 120 square meters. You need to order flooring in square feet. Enter 120 m² to get 1,291.67 ft². The tile supplier quotes in square feet per box, and this conversion tells you exactly how many boxes to order.

Why Use Area Converter?

8 units: m², km², ft², yd², acre, hectare, mi², in²
Real-time conversion as you type
Full reference table for all units
Swap direction with one click

How to Use Area Converter — Step by Step

Enter an area value.

Select from and to units.

View the result instantly.

Copy any value from the reference table.

Who Is Area Converter Best For?

real estate
agriculture
construction
land surveying

Pro Tips for Area Converter

11 acre = 43,560 square feet. This is a standard unit for US land measurement. To quickly estimate, remember that an acre is roughly the size of a standard American football field without the end zones.
21 hectare = 10,000 square meters = about 2.47 acres. Hectares are the standard unit for land measurement in most countries outside the US.
3When converting property sizes, double-check whether the listing uses "square feet" (US) or "square metres" (rest of world). The difference is significant — 1 m² = 10.76 ft².
4Square miles are used for very large areas like national parks, counties, and states. 1 square mile = 640 acres = 259 hectares.

Area Converter — Frequently Asked Questions

How many square feet are in an acre?

1 acre equals 43,560 square feet or 4,046.86 square meters.

What is a hectare?

A hectare (ha) is a metric unit of area equal to 10,000 square meters or 2.47105 acres. It is commonly used for land measurement.

How accurate are the unit conversions?

Conversions use NIST-standard conversion factors with precision up to 15 significant digits. Currency exchange rates update every 10 minutes from a free data source.

Can I convert between any two units?

Yes. Each converter supports all standard units within its category. For example, the length converter handles metric, imperial, and nautical units.

Is Area Converter really free to use?

Yes, Area Converter is completely free with no hidden charges, no usage limits, and no premium tiers. You can use it as often as you need without signing up or providing any personal information.

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Free online tool — works in your browser, no sign-up required. Start using it right now.

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