Area Converter

Convert between various area units including metric, imperial, and specialized measurements with precision and built-in area calculators.

Area Converter
Professional

Convert between various area units including metric, imperial, and specialized measurements

Area Value

From Unit

Understanding Area Units

Metric System

The metric system uses square units based on the meter. Each unit is 100 times larger than the next smaller unit.

Square Millimeter (mm²): Area of a pinhead
Square Centimeter (cm²): Area of a fingernail
Square Meter (m²): Area of a small room
Hectare (ha): 10,000 m² - size of a soccer field
Square Kilometer (km²): 100 hectares - size of a small city

Imperial System

Imperial area units are based on linear measurements squared, with some specialized units for land measurement.

Square Inch (in²): Area of a large coin
Square Foot (ft²): Area of a floor tile
Square Yard (yd²): 9 square feet
Acre (ac): 43,560 ft² - traditional field size
Square Mile (mi²): 640 acres - large land area

Area Calculation Basics

Common Shapes

Rectangle

Area = Length × Width

Square

Area = Side²

Circle

Area = π × Radius²

Triangle

Area = ½ × Base × Height

Tips for Accuracy

Always use the same units for all measurements
Double-check your calculations for large areas
Consider irregular shapes as combinations of regular shapes
Use appropriate precision for your purpose

Real-World Applications

Real Estate & Construction

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Property Listings: Converting between square feet and square meters for international buyers
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Flooring & Materials: Calculating how much material needed for rooms and buildings
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Land Development: Converting between acres and hectares for zoning and planning

Agriculture & Landscaping

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Farm Planning: Calculating field sizes for crop rotation and yield estimation
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Irrigation Systems: Determining coverage area for sprinklers and water distribution
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Garden Design: Planning lawn, garden beds, and outdoor living spaces

Manufacturing & Design

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Material Usage: Calculating fabric, paper, or metal sheet requirements
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Product Design: Optimizing surface areas for packaging and display
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Quality Control: Measuring surface areas for coating and treatment processes

Environmental & Scientific

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Environmental Studies: Measuring forest coverage, wetland areas, and habitat sizes
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Solar Installation: Calculating roof area for solar panel placement
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Research: Measuring sample areas in biological and geological studies

Common Area Conversions

Home & Property

1,000 ft²≈ 93 m²

2,500 ft²≈ 232 m²

1 acre≈ 4,047 m²

Land & Agriculture

1 hectare≈ 2.47 acres

100 acres≈ 40.5 hectares

1 km²≈ 247 acres

Small Areas

1 ft²≈ 929 cm²

1 m²≈ 10.76 ft²

1 yd²≈ 0.84 m²

Specialized Area Units

Agricultural Units

Acre

Originally defined as the area a yoke of oxen could plow in one day. Now standardized as 43,560 square feet or about 4,047 square meters.

Hectare

Metric unit equal to 10,000 square meters. Commonly used worldwide for land area measurement, especially in agriculture and land management.

Historical & Regional Units

Are

Equal to 100 square meters. Still used in some countries for small land areas, though less common than hectares.

Rood

Historical English unit equal to ¼ acre or about 1,012 square meters. Rarely used today except in historical contexts.

Essential Area Conversion Formulas

Metric ↔ Imperial

1 m² = 10.764 ft²

1 ft² = 0.0929 m²

1 hectare = 2.471 acres

1 acre = 0.405 hectares

1 km² = 247.1 acres

1 mi² = 2.59 km²

Within Systems

1 m² = 10,000 cm²

1 hectare = 10,000 m²

1 ft² = 144 in²

1 yd² = 9 ft²

1 acre = 43,560 ft²

1 mi² = 640 acres

Frequently Asked Questions

What's the difference between area and perimeter?

Area measures the space inside a shape (square units), while perimeter measures the distance around the outside (linear units). For example, a 10×10 room has an area of 100 ft² and a perimeter of 40 feet.

Why do some countries use hectares while others use acres?

Hectares are part of the metric system and are used in most countries worldwide. Acres are part of the imperial system and are primarily used in the United States and some Commonwealth countries for land measurement.

How do I calculate irregular areas?

Break irregular shapes into regular shapes (rectangles, triangles, circles), calculate each area separately, then add them together. For very irregular areas, you might need surveying tools or specialized software.

How accurate are area conversions?

Our conversions use precise conversion factors and are accurate to many decimal places. The precision shown depends on the size of the area and practical considerations for the intended use.

What's the easiest way to remember area conversions?

Remember key relationships: 1 m² ≈ 11 ft², 1 hectare ≈ 2.5 acres, 1 acre ≈ 4,000 m². For quick estimates, these rounded numbers work well for most practical purposes.

When should I use different area units?

Use cm² and in² for small objects, m² and ft² for rooms and buildings, hectares and acres for land and farms, and km² and mi² for large geographical areas like cities or counties.