Area Converter
Our area converter helps you convert between 11 area units including square meters, acres, square feet, hectares, square kilometers, and more. Fast, accurate, and works instantly in your browser. Perfect for real estate, construction, agriculture, and everyday area conversions.
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11 Area Units
Convert between square meters, acres, square feet, hectares, square kilometers, square inches, square yards, and more. Supports both metric and imperial units.
Instant Conversion
All conversions happen instantly in your browser using precise mathematical calculations. No server delays, no API calls—just instant results.
100% Private
All conversions happen locally in your browser. We never store, log, or transmit your conversion data. Complete privacy guaranteed.
Area Converter online
Convert between 11 area units with instant, precise calculations
Understanding Area Units
Area units measure the size of a two-dimensional surface or space. Understanding each unit's origin, common applications, and relationships helps you choose the right unit for your needs and make accurate conversions. Here's a comprehensive guide to all area units supported by our converter.
📏Metric Area Units (SI)
Square Millimeter (mm²)
Definition: One square millimeter equals 0.000001 square meters (1/1,000,000 m²). It's the area of a square with sides of 1 millimeter. The prefix "milli" means one thousandth in the metric system.
Common Uses: Square millimeters are used for very small surface areas. Examples include: electronic component sizes, paper thickness measurements, precision manufacturing, and microscopic surface areas. This unit is essential for detailed engineering and scientific measurements.
Conversion: 1 mm² = 0.000001 m² = 0.00155 in² = 100 cm²
Square Centimeter (cm²)
Definition: One square centimeter equals 0.0001 square meters (1/10,000 m²). It's the area of a square with sides of 1 centimeter. The prefix "centi" means one hundredth in the metric system.
Common Uses: Square centimeters are commonly used for small surface areas. Examples include: paper sizes, small object surfaces, clothing fabric areas, and medical measurements. A standard credit card is approximately 85.6 cm² (5.3 × 16.1 cm).
Conversion: 1 cm² = 0.0001 m² = 0.155 in² = 100 mm²
Square Meter (m²)
Definition: The square meter is the base unit of area in the International System of Units (SI). It's the area of a square with sides of 1 meter. One square meter equals 10.764 square feet.
History: The square meter is derived from the meter, which was originally defined in 1799 as one ten-millionth of the distance from the equator to the North Pole. The modern definition is based on the speed of light.
Common Uses: Square meters are the standard unit for measuring area in most countries worldwide. Examples include: room sizes, property areas, construction materials, floor space calculations, and real estate listings. A typical small bedroom is approximately 12-15 m².
Conversion: 1 m² = 10.764 ft² = 1.196 yd² = 0.000247 acres = 10,000 cm²
Hectare (ha)
Definition: One hectare equals 10,000 square meters or 2.471 acres. It's a metric unit commonly used for measuring land areas, especially in agriculture and real estate. The name comes from "hecto" (hundred) and "are" (100 m²), meaning "100 ares."
History: The hectare was introduced in France in 1795 as part of the metric system. It was designed to be a practical unit for measuring agricultural and forest land.
Common Uses: Hectares are widely used for measuring large land areas. Examples include: agricultural land, forest areas, parks, sports fields, and large properties. A hectare is approximately the size of a soccer field (100 m × 100 m). Most countries worldwide use hectares for land measurement.
Conversion: 1 ha = 10,000 m² = 2.471 acres = 0.01 km² = 100 ares
Square Kilometer (km²)
Definition: One square kilometer equals 1,000,000 square meters (1 km × 1 km) or approximately 0.386 square miles. It's used for measuring very large areas such as cities, countries, and geographical regions.
Common Uses: Square kilometers are used for measuring large geographical areas. Examples include: city areas (New York City is approximately 783.8 km²), country sizes (France is approximately 643,801 km²), national parks, lakes, and large land developments. It's the standard unit for geographical and administrative area measurements.
Conversion: 1 km² = 1,000,000 m² = 247.1 acres = 0.386 mi² = 100 hectares
Are (a)
Definition: One are equals 100 square meters (10 m × 10 m) or 0.01 hectares. It's a metric unit used for measuring medium-sized land areas, though it's less commonly used than hectares or square meters today.
History: The are was introduced as part of the metric system in France in 1795. It was originally designed as a base unit but is now less commonly used, with the hectare (100 ares) being preferred for land measurement.
Common Uses: Ares are sometimes used for measuring smaller land plots, garden sizes, and agricultural parcels. While not as common as hectares or square meters, they're still used in some European countries for land registration and taxation purposes. One are is approximately 107.6 square feet.
Conversion: 1 a = 100 m² = 0.01 ha = 0.0247 acres = 1,076.4 ft²
🇺🇸US/Imperial Area Units
Square Inch (in²)
Definition: One square inch equals the area of a square with sides of 1 inch, approximately 6.452 square centimeters or 0.00064516 square meters. It's a small unit commonly used in the United States.
Common Uses: Square inches are used for small surface areas in the US. Examples include: screen sizes (smartphone screens, monitors), paper sizes, fabric measurements, and small object surfaces. A standard US letter-size paper is 93.5 in² (8.5 × 11 inches).
Conversion: 1 in² = 6.452 cm² = 0.00064516 m² = 0.00694 ft²
Square Foot (ft²)
Definition: One square foot equals the area of a square with sides of 1 foot (12 inches), approximately 0.092903 square meters or 144 square inches. It's the most commonly used area unit in the United States.
Common Uses: Square feet are the standard unit for measuring area in the US. Examples include: room sizes, house areas, apartment sizes, real estate listings, construction materials, and floor space. A typical small bedroom is approximately 120-150 ft² (11-14 m²). Most US real estate listings use square feet.
Conversion: 1 ft² = 0.092903 m² = 144 in² = 0.111 yd² = 0.000023 acres
Square Yard (yd²)
Definition: One square yard equals the area of a square with sides of 1 yard (3 feet), approximately 0.836127 square meters or 9 square feet. It's commonly used in the US and UK for medium-sized areas.
Common Uses: Square yards are used for measuring medium-sized areas. Examples include: carpet and flooring measurements, landscaping areas, small gardens, and construction materials. One square yard equals 9 square feet. It's commonly used in the textile industry for fabric measurements.
Conversion: 1 yd² = 0.836127 m² = 9 ft² = 1,296 in² = 0.000207 acres
Acre
Definition: One acre equals 4,046.86 square meters, 43,560 square feet, or approximately 0.405 hectares. It's a unit of land area used primarily in the United States and United Kingdom for measuring large land areas, especially in agriculture and real estate.
History: The acre has historical origins dating back to medieval England. It was originally defined as the area of land that could be plowed in one day by a yoke of oxen. The modern definition is standardized at 43,560 square feet.
Common Uses: Acres are widely used for measuring large land areas in the US and UK. Examples include: agricultural land, farms, ranches, large properties, real estate listings, parks, and land development projects. One acre is approximately the size of a football field (without end zones). It's the standard unit for land measurement in the United States.
Conversion: 1 acre = 4,046.86 m² = 43,560 ft² = 4,840 yd² = 0.405 hectares = 0.00156 mi²
Square Mile (mi²)
Definition: One square mile equals the area of a square with sides of 1 mile (5,280 feet), approximately 2.59 square kilometers, 640 acres, or 2,589,988 square meters. It's used for measuring very large land areas.
Common Uses: Square miles are used for measuring large geographical areas, especially in the United States. Examples include: city areas (Los Angeles is approximately 502.7 mi²), state sizes (Texas is approximately 268,596 mi²), national parks, counties, and large land developments. One square mile equals 640 acres.
Conversion: 1 mi² = 2.59 km² = 640 acres = 2,589,988 m² = 27,878,400 ft²
Quick Reference: Area Unit Equivalents
| Unit | Square Meters | Square Feet | Acres |
|---|---|---|---|
| 1 Square Millimeter | 0.000001 m² | 0.00001076 ft² | 2.47×10⁻¹⁰ acres |
| 1 Square Centimeter | 0.0001 m² | 0.001076 ft² | 2.47×10⁻⁸ acres |
| 1 Square Meter | 1 m² | 10.764 ft² | 0.000247 acres |
| 1 Hectare | 10,000 m² | 107,639 ft² | 2.471 acres |
| 1 Square Kilometer | 1,000,000 m² | 10,763,910 ft² | 247.1 acres |
| 1 Square Inch | 0.000645 m² | 0.00694 ft² | 1.59×10⁻⁷ acres |
| 1 Square Foot | 0.092903 m² | 1 ft² | 0.000023 acres |
| 1 Square Yard | 0.836127 m² | 9 ft² | 0.000207 acres |
| 1 Acre | 4,046.86 m² | 43,560 ft² | 1 acre |
| 1 Square Mile | 2,589,988 m² | 27,878,400 ft² | 640 acres |
What is Area Conversion?
Area conversion is the process of converting an area measurement from one unit to another. Area measures the size of a two-dimensional surface or space. Understanding how to convert between different area units is essential for real estate, construction, agriculture, interior design, and everyday measurements.
Area units range from the very small (square millimeters, used in precision manufacturing) to the very large (square kilometers, used for geographical areas). The most commonly used area units include square meters (metric), square feet (US/Imperial), acres (US/UK), and hectares (metric). Each unit has a precise mathematical relationship to the others, with the square meter being the base metric unit for area in the International System of Units (SI).
According to the International Bureau of Weights and Measures (BIPM), the square meter is the base unit of area in the International System of Units (SI). This precise definition allows for accurate conversions between all area units, from square millimeters (1/1,000,000 of a square meter) to square kilometers (1,000,000 square meters). It's important to note the differences between metric and imperial units, as they use different base measurements.
✗Manual Calculation
- • Time-consuming conversions
- • Risk of calculation errors
- • Confusing metric vs imperial units
- • Difficult for large areas
✓Online Area Converter
- • Instant conversion results
- • Precise calculations
- • Metric and imperial units supported
- • Supports 11 area units
Area Conversion Facts
Interesting facts about area units and their relationships
Area Measurement Standards
According to the International Bureau of Weights and Measures (BIPM), the square meter is the base unit of area in the International System of Units (SI). All area conversions are based on precise mathematical relationships, ensuring accuracy across all area unit conversions from square millimeters to square kilometers. Note that metric and imperial units use different base measurements.
Why Use Our Area Converter?
Our area converter provides instant, accurate conversions between 11 area units with high precision. Whether you're working on real estate, construction projects, agriculture, or converting measurements, our tool offers the speed, accuracy, and convenience you need.
Instant Client-Side Conversion
All area conversions happen instantly in your browser using precise mathematical calculations. No server delays, no API calls, no waiting—just instant results whenever you need them. Perfect for quick calculations, real estate work, construction projects, and professional applications where speed matters.
11 Comprehensive Area Units
Convert between square meters, acres, square feet, hectares, square kilometers, square inches, square yards, square miles, and more. This comprehensive range covers everything from tiny measurements to large land areas, supporting both metric and imperial measurement systems used worldwide.
High-Precision Calculations
Our converter uses precise mathematical formulas based on the International System of Units (SI) definitions. Conversions maintain high precision, making it suitable for real estate transactions, construction projects, agricultural planning, and professional applications where accuracy is critical.
100% Private & Secure
All conversions happen locally in your browser. We never store, log, or transmit your conversion data. Your calculations remain completely private, making this tool safe for sensitive real estate, construction, or business calculations. No registration, no tracking, no data collection.
Completely Free Forever
Use our area converter as much as you want, whenever you need it, without any cost. No hidden fees, no premium tiers, no usage limits. Convert area units unlimited times for free, making it perfect for homeowners, real estate professionals, contractors, students, and anyone who needs regular area conversions.
Mobile-Friendly Design
Access our area converter from any device—desktop, tablet, or smartphone. The responsive design works perfectly on all screen sizes, so you can convert area units on the go. Perfect for real estate agents at property showings, contractors on job sites, or anyone who needs quick area conversions anywhere.
How It Works
Our area converter uses precise mathematical conversions based on the International System of Units (SI) definitions. All conversions are calculated client-side in your browser for instant results. Conversions use square meters as the base unit, ensuring accuracy across all metric and imperial measurements.
Select Units
Choose your source area unit from the "Convert From" dropdown and your target area unit from the "Convert To" dropdown.
Enter Amount
Type the amount you want to convert in the input field. You can enter whole numbers or decimals.
Calculate
Our converter calculates the conversion using precise mathematical formulas, converting to square meters first, then to your target unit.
View Result
Click Convert to instantly see the converted amount displayed clearly with appropriate precision formatting.
Best Practices for Area Conversion
When converting area units, following best practices ensures you get accurate results and understand the relationships between different area measurements. Here are essential tips for using area converters effectively:
1. Distinguish Metric and Imperial Units
Always be aware of whether you're using metric or imperial units, as they use different base measurements. For example, 1 square meter = 10.764 square feet, while 1 hectare = 2.471 acres. Metric units are used in most countries worldwide, while imperial units are primarily used in the United States and United Kingdom. When working with international clients or documents, make sure you're using the correct system.
2. Understand Common Real Estate Measurements
For real estate conversions, remember that 1 square meter = 10.764 square feet, 1 acre = 43,560 square feet, and 1 hectare = 2.471 acres. When converting property sizes, be consistent with the measurement system used in your region or documents. Most US real estate listings use square feet and acres, while most international listings use square meters and hectares.
3. Use Appropriate Units for Your Context
Choose area units that make sense for your application. For small spaces (rooms, apartments), square meters or square feet are most practical. For medium-sized areas (yards, lots), square yards or ares are appropriate. For large land areas (farms, parks), acres, hectares, or square kilometers are commonly used. For very large geographical areas (cities, countries), square kilometers or square miles are standard.
4. Verify Large Number Conversions
When converting very large numbers (e.g., converting millions of square feet to hectares), verify the result makes sense. For example, 1 hectare = 10,000 square meters = 107,639 square feet, so 1,000,000 square feet equals approximately 9.29 hectares. Double-checking helps catch input errors and ensures accuracy in important calculations like property valuations or construction estimates.
5. Note Regional Preferences
Different regions prefer different area units. The United States primarily uses square feet and acres, while most other countries use square meters and hectares. The United Kingdom uses both systems, with imperial units (acres, square feet) commonly used for real estate and metric units (square meters, hectares) used in official documents. When working internationally, always specify which unit system you're using.
Frequently Asked Questions
How do I convert area units online?
To convert area units online, select your source area unit from the 'Convert From' dropdown (e.g., square meters, acres, square feet, hectares), choose your target area unit from the 'Convert To' dropdown, enter the area value you want to convert, and click the Convert button. The tool will instantly display the converted area using precise mathematical conversions.
What area units are supported by this converter?
Our area converter supports 11 area units including square millimeters, square centimeters, square meters, square kilometers, hectares, ares, square inches, square feet, square yards, acres, and square miles. This comprehensive range covers everything from tiny measurements to large land areas, making it perfect for construction, real estate, agriculture, and everyday area conversions.
How accurate are the area conversions?
Our area converter uses precise mathematical conversions based on standard area unit definitions. Conversions are calculated client-side in your browser with high precision, ensuring accurate results. For example, 1 square meter = 10.764 square feet, 1 acre = 4,047 square meters, and 1 hectare = 10,000 square meters. The tool maintains accuracy across all unit conversions.
What is the difference between a hectare and an acre?
A hectare is a metric unit equal to 10,000 square meters (about 2.47 acres), while an acre is an imperial unit equal to 4,047 square meters (about 0.405 hectares). Hectares are commonly used in most countries worldwide for measuring land, while acres are primarily used in the United States and United Kingdom. One hectare is approximately 2.47 times larger than one acre.
Is this area converter free to use?
Yes, our area converter is completely free to use. There are no registration requirements, no hidden fees, and no limits on the number of conversions you can perform. Simply visit the page, enter your values, and convert area units instantly without any cost.
How do I convert square meters to acres or square feet to hectares?
To convert square meters to acres, select 'Square Meter' as the source unit and 'Acre' as the target unit, enter the number of square meters, and click Convert. Similarly, to convert square feet to hectares, select 'Square Foot' as the source and 'Hectare' as the target. The converter handles all standard area unit conversions automatically with precise calculations.
Can I use this for real estate and construction conversions?
Absolutely! Our area converter is perfect for real estate and construction conversions. It supports common units like square feet, square meters, acres, and hectares. You can easily convert property sizes, room areas, lot sizes, and construction measurements between different measurement systems.
What is a square meter equivalent to in square feet?
One square meter equals approximately 10.764 square feet. This conversion is commonly used when converting between metric and imperial area measurements, especially in real estate, construction, and interior design projects.
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