mi2 to a | Convert Square Mile to Are

Square Mile to Are Conversion Formula Example What is a (mi²)?Why is London's Financial Center Called the ""?How Do You Convert to Other Units?How is the Used in the United States?What is an Are (a)?From Are to Hectare: A Common Land Measurement The History and Modern Use of the Are Related Metric Units: Centiare, Decare, and Hectare What is the imperial system?What is the metric system?Square Mile to Are Conversion Table

Square Mile to Are Conversion Formula

To convert from Square Mile (mi2) to Are (a), use the following formula:

$\textbf{ Are} \text{ (a)}$

$= 27878400 \times \frac{1}{10.7639} \times \frac{1}{100}\times \textbf{ Square Mile} \text{ (mi2)}$

$= 25899.906167838794489\times \textbf{ Square Mile} \text{ (mi2)}$

With $\frac{1}{10.7639}$ is the ratio between the base units Square Meter (m2) and Square Foot (ft2).

Example

Let's convert 5 Square Mile (mi2) to Are (a).

Using the formula:

$5 \times 25899.906167838794489 = 129499.53083919397245$

Therefore, 5 Square Mile (mi2) is equal to $129499.53083919397245$ Are (a).

What is a Square Mile (mi²)?

A square mile (mi²), with its plural form being square miles, is an imperial unit of area equal to 27,878,400 square feet (ft²).

Why is London's Financial Center Called the "Square Mile"?

The "Square Mile" is the famous nickname for the City of London, the historic heart and central financial district of London, England.

This nickname comes from its compact geographical area of just 1.12 square miles (2.90 km²).

Despite its small size, it remains a global hub for finance and business, home to landmarks like the Bank of England and the London Stock Exchange.

How Do You Convert Square Miles to Other Units?

Converting square miles to other units is essential for comparing land areas globally.

One square mile is equivalent to:

2.59 square kilometers (km²)
640 acres
259 hectares

This is especially useful when comparing data from countries that use the imperial system (like the United States) with those that use the metric system.

How is the Square Mile Used in the United States?

In the United States, the square mile is a fundamental unit in the Public Land Survey System (PLSS).

This system, used since 1785 to survey and sell land, is based on a grid. Here's how it works:

Land is divided into square townships, each measuring six miles on each side.
Each township is then divided into 36 sections.
Each section measures exactly one square mile (or 640 acres).

What is an Are (a)?

An are (a) is a metric unit of area, defined as 100 square meters (100 m²).

It is part of the same system as the more widely known hectare. The plural form is ares.

From Are to Hectare: A Common Land Measurement

The hectare (ha), a much more common unit for measuring land, is derived directly from the are.

The prefix 'hecto-' means 100, so one hectare is equal to 100 ares.

Since one are is 100 square meters, a hectare is equivalent to 10,000 square meters (100 ares × 100 m²/are). This makes the hectare an ideal unit for measuring large areas, such as farms, forests, and parks.

The History and Modern Use of the Are

The are was first established as part of the original French metric system in 1795. It was designed to serve as a standard base unit for measuring land, simplifying calculations required by older, traditional units.

While the hectare is more common today in agriculture and forestry, the are is still used in specific contexts, such as real estate and land registries in many countries, particularly throughout Europe.

The are serves as the foundation for other metric units of land area, making conversions straightforward. The most common related units include:

Centiare (ca): Equal to one-hundredth of an are. This makes a centiare precisely one square meter (1 m²).
Decare (daa): Equal to ten ares, or 1,000 square meters (1,000 m²). The decare is often used for land measurement in parts of Eastern Europe and the Middle East.
Hectare (ha): Equal to one hundred ares, or 10,000 square meters (10,000 m²).

What is the imperial system?

The imperial system is a system of measurement that was first defined in the British Weights and Measures Act of 1824. It's known for using units like inches, feet, pounds, and gallons. While most of the world now uses the metric system, the imperial system remains the official system of measurement in the United States and is still used in specific contexts in other countries, such as the United Kingdom and Canada.

What is the metric system?

The metric system is a decimal-based system of measurement used by nearly every country in the world. Its key feature is the use of prefixes to denote multiples and submultiples of the base units by powers of ten.

Square Mile to Are Conversion Table

Here are some quick reference conversions from Square Mile (mi2) to Are (a):

Square Miles	Ares
0.000001 mi2	$0.025899906167838794489$ a
0.001 mi2	$25.899906167838794489$ a
0.1 mi2	$2589.9906167838794489$ a
1 mi2	$25899.906167838794489$ a
2 mi2	$51799.812335677588978$ a
3 mi2	$77699.718503516383467$ a
4 mi2	$103599.62467135517796$ a
5 mi2	$129499.53083919397245$ a
6 mi2	$155399.43700703276693$ a
7 mi2	$181299.34317487156142$ a
8 mi2	$207199.24934271035591$ a
9 mi2	$233099.1555105491504$ a
10 mi2	$258999.06167838794489$ a
20 mi2	$517998.12335677588978$ a
30 mi2	$776997.18503516383467$ a
40 mi2	$1035996.2467135517796$ a
50 mi2	$1294995.3083919397245$ a
100 mi2	$2589990.6167838794489$ a
1000 mi2	$25899906.167838794489$ a
10000 mi2	$258999061.67838794489$ a

Convert Area from Square Mile to Are (mi2 to a)

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