Are [a]
An are (a) is a unit of area equal to 100 square meters (mยฒ). It is commonly used in land measurement, especially in some European countries. 1 are = 100 mยฒ = 0.01 hectares. Ares are useful for measuring small plots of land or gardens.
Square Rod
A square rod (also called a perch or pole) is a unit of area used in land measurement. It is the area of a square with each side one rod long.
1 rod = 16.5 feet (5.029 meters)
1 square rod = 16.5 ft ร 16.5 ft = 272.25 square feet โ 25.29 square meters
160 square rods = 1 acre
Square rods were historically used in surveying and property descriptions.