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Area Unit Converter

Professional-grade area conversion tool featuring a Matrix View for simultaneous conversions, support for math expressions, and extensive regional unit databases (Tatami, Plaza, Morgen).

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Category Area & Volume
Area Matrix Converter

Real-time conversion for Real Estate, Science, and Land Surveying.

💡 Enter a value to see real-world comparisons.
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About

Precision in area measurement is the bedrock of disciplines ranging from cadastral surveying and agronomy to microscopic physics. While basic tools handle simple square meter conversions, professional workflows demand a deeper understanding of regional variances, historical standards, and scale-specific contexts. A miscalculation in land development or scientific research can lead to significant financial loss or data invalidation.

This tool is engineered for Domain Exhaustion, covering not just standard Metric and Imperial systems, but also specific regional units like the Japanese Tatami, the Spanish Vara, and the high-energy physics unit Barn. It features a reactive Matrix View logic, allowing you to input a single value - even as a mathematical expression like 50 × 120 - and instantly visualize its equivalent across the entire dimensional spectrum.

area converter land measurement hectares to acres real estate tool scientific units

Formulas

The core logic utilizes a normalized base unit (Square Meter, m2). Every conversion follows a two-step linear transformation:

{
Abase = Ainput × kinputAtarget = Abasektarget

Where k represents the conversion coefficient relative to 1 m2. For example, converting Acres to Hectares involves:

Aha = Aac × 4046.86 (m²/ac)10000 (m²/ha) ≈ Aac × 0.4047

Reference Data

Unit NameSymbolFactor (m²)Category
Square Meter (Base)m²1Metric
Square Kilometerkm²1,000,000Metric
Hectareha10,000Metric
Acre (International)ac4,046.856422Imperial
Square Milemi²2,589,988.11Imperial
Square Footft²0.09290304Imperial
Barnb1e-28Science
Tatami (Kyoto)jo1.82405Regional (Japan)
Townshiptwp93,239,572Imperial (Survey)
Morgen (Prussian)Mg2,553.22Historic (German)
Arpent (Paris)arp3,418.89Historic (French)
Cuerdacda3,930.395625Regional (Puerto Rico)
Plaza-6,400Regional (Spain)
Dunam-1,000Regional (Middle East)
Square Rod/Polerd²25.2928526Imperial

Frequently Asked Questions

The input field includes a mathematical parser. You can directly type expressions like "50*20" (for a lot size) or "1000/3" and the tool will compute the result before converting it to all other units.
An Acre is an Imperial unit primarily used in the US and UK, approximately 4,047 m². A Hectare is a Metric unit used globally, exactly 10,000 m². One Hectare is roughly 2.47 Acres.
Historical units often varied by region or era. For example, a "Tatami" mat size differs between Kyoto (Kyoma), Tokyo (Edoma), and Nagoya. This tool uses the standard Kyoto Tatami (1.82 m²) as the baseline reference.
A Barn is an extremely small unit of area (10⁻²⁸ m²) used in nuclear physics to express the cross-sectional area of nuclei and the probability of particle interaction. It is not used for land measurement.