If you are buying agricultural land or an empty plot to build a house in Eastern India or Bangladesh, the property broker will often tell you the size of the land in a traditional unit called a 'Decimal' (sometimes spelled as Dismil).
Because banks and modern architects only work in Square Feet, you must know the exact conversion. Exactly 1 Decimal of land is equal to 435.6 Square Feet.
Conversion Value: 1 Decimal = 435.6 Square Feet (sq ft).
Relationship to Acre: 100 Decimals makes exactly 1 massive Acre.
Regional Spelling: In rural Indian villages, it is often pronounced and written as 'Dismil' (डिसमिल).
Usage: It is almost entirely obsolete in modern massive cities (which use Sq Ft or Square Meters), but it remains the absolute standard unit for farmers and village land registries in Eastern India.
The 'Decimal' is an incredibly old, traditional land measurement unit used heavily during the British Empire, and it is still widely used today in rural West Bengal, Bihar, Jharkhand, and Odisha. It was created to easily break down a massive Acre of land. Mathematically, 1 Decimal is defined as exactly one-hundredth (1/100th) of an Acre.
To prove why it equals 435.6 sq ft, we look at the official global standard for an Acre:
If a farmer tells you he is selling a beautiful plot of land that is 5 Decimals in size, how big is it for your architect?
There are exactly 435.6 square feet in 1 Decimal of land.
By strict mathematical definition, it takes exactly 100 Decimals to make up 1 Acre of land.
To convert it, simply take the number of decimals you have and multiply it by 435.6. The final answer will be your area in square feet.
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