Choose a Measurement
Select a measurement and convert between different units
Single conversion
To convert from Are (a) to Square Inch (in2), use the following formula:
With is the ratio between the base units Square Foot (ft2) and Square Meter (m2).
Let's convert 5 Are (a) to Square Inch (in2).
Using the formula:
Therefore, 5 Are (a) is equal to Square Inch (in2).
Here are some quick reference conversions from Are (a) to Square Inch (in2):
| Ares | Square Inches |
|---|---|
| 0.000001 a | in2 |
| 0.001 a | in2 |
| 0.1 a | in2 |
| 1 a | in2 |
| 2 a | in2 |
| 3 a | in2 |
| 4 a | in2 |
| 5 a | in2 |
| 6 a | in2 |
| 7 a | in2 |
| 8 a | in2 |
| 9 a | in2 |
| 10 a | in2 |
| 20 a | in2 |
| 30 a | in2 |
| 40 a | in2 |
| 50 a | in2 |
| 100 a | in2 |
| 1000 a | in2 |
| 10000 a | in2 |
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.
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 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:
A square inch (in2) is a standard unit of area in the imperial system, most commonly used in the United States.
To put it simply, it's the area of a square that measures one inch on each side.
For a larger comparison, it is equal to 1/144th of a square foot (ft2).
The square inch plays a vital role in one of the most commonly used pressure measurements: Pounds per Square Inch (PSI).
This unit is essential in everyday life, such as when inflating car tires or measuring water pressure in plumbing systems.
Simply put, PSI indicates the amount of force applied to a single square inch of area. This measurement is crucial for ensuring safety and optimal performance in various applications.
Since most of the world uses the metric system, it's essential to know key conversions.
For instance, one square inch is exactly 6.4516 square centimeters (cm2).
This conversion is essential for global fields like trade, scientific research, and manufacturing. As a real-world reference, a US postage stamp measures about one square inch.
While larger areas are measured in square feet or acres, the square inch remains the standard for specifying smaller surfaces.
It's commonly used in: