Decimal (Area): Unveiling its Significance and Applications
Decimal is a traditional unit of land area measurement widely used in Bangladesh, West Bengal, Bihar, Jharkhand, Assam, and several other regions of the Indian subcontinent. It is one of the most common units used to measure residential plots, agricultural land, and small property parcels. A Decimal represents exactly one-hundredth (1/100) of an Acre, making it a convenient unit for describing land sizes in local real estate and land registration systems.
In Bangladesh, the Decimal is often known as Satak, Shotok, or Shotangsho. These terms refer to the same area measurement and are commonly used interchangeably in property advertisements, land deeds, mutation records, and survey documents.
Decimal Definition
One Decimal is equal to:
- 1 Satak (Shotok)
- 0.01 Acre
- 435.6 Square Feet
- 48.4 Square Yards
- 40.4686 Square Meters
- 0.00404686 Hectares
- 4,046.86 Square Decimeters
Because of its practical size, Decimal remains one of the most widely recognized land measurement units in Bangladesh and eastern India.
History of the Decimal Unit
The Decimal unit evolved from the Acre-based land measurement system introduced during British administration in the Indian subcontinent. Since an Acre was often too large for describing residential and small agricultural plots, surveyors and land administrators commonly divided an Acre into one hundred equal parts. Each of these parts became known as a Decimal or Satak.
Over time, the Decimal became deeply integrated into local land administration systems. Even today, many landowners and real estate professionals prefer using Decimal rather than Square Meter or Hectare because it aligns with traditional land records and common market practice.
Where Is Decimal Used?
The Decimal unit is commonly used in:
- Bangladesh
- West Bengal
- Bihar
- Jharkhand
- Assam
- Tripura
- Other Bengali-speaking regions
Government land offices, surveyors, property developers, real estate agents, and landowners frequently use Decimal when discussing land area. Many land registration documents, khatian records, mutation certificates, and property advertisements still reference plot sizes in Decimals.
Why Is Decimal Important?
Decimal provides a simple and practical way to describe small and medium-sized plots of land. While Acres and Hectares are useful for measuring large agricultural properties, Decimals are more suitable for residential and commercial plots.
For example:
- 3 Decimal = Small residential plot
- 5 Decimal = Common housing plot in urban areas
- 10 Decimal = Medium-sized residential property
- 25 Decimal = Large residential or mixed-use property
- 100 Decimal = 1 Acre
Because most land transactions involve relatively small parcels, Decimal remains a preferred measurement unit in local property markets.
Decimal and Satak: Are They Different?
No. Decimal and Satak are exactly the same unit. The difference is only in naming conventions. In Bangladesh and parts of eastern India, people frequently use the terms Decimal, Satak, Shotok, and Shotangsho interchangeably.
Examples:
- 1 Decimal = 1 Satak
- 5 Decimal = 5 Satak
- 10 Decimal = 10 Satak
- 50 Decimal = 50 Satak
- 100 Decimal = 1 Acre
This is why conversions between Decimal and Satak always result in the same numerical value.
Common Decimal Conversions
| Decimal | Equivalent Area |
|---|---|
| 1 Decimal | 435.6 sq ft |
| 2 Decimal | 871.2 sq ft |
| 5 Decimal | 2,178 sq ft |
| 10 Decimal | 4,356 sq ft |
| 20 Decimal | 8,712 sq ft |
| 50 Decimal | 21,780 sq ft |
| 100 Decimal | 1 Acre |
Decimal in Real Estate
Decimal is one of the most frequently used units in property advertisements throughout Bangladesh. Land listings often describe plots as 3 Decimal, 5 Decimal, or 10 Decimal because these sizes are familiar to buyers and sellers.
When converting land sizes for international investors or engineering projects, Decimals are commonly converted into Square Meters, Square Feet, Acres, or Hectares. Understanding Decimal measurements helps property buyers compare land sizes accurately across different measurement systems.
Related Land Measurement Units
Decimal is often used together with several traditional and modern land measurement units, including:
- Satak (Shotok)
- Katha (Cottah)
- Bigha
- Kani
- Acre
- Square Foot
- Square Yard
- Square Meter
- Hectare
Understanding the relationship between these units is important when reading land records, surveying reports, and property transaction documents.
Frequently Asked Questions
How many Square Feet are in 1 Decimal?
1 Decimal equals 435.6 Square Feet.
Is Decimal the same as Satak?
Yes. Decimal and Satak are exactly the same unit of land area measurement.
How many Decimals make 1 Acre?
100 Decimals make 1 Acre.
How many Square Meters are in 1 Decimal?
1 Decimal equals approximately 40.4686 Square Meters.
Is Decimal still used today?
Yes. Decimal remains one of the most commonly used land measurement units in Bangladesh and several parts of eastern India, particularly in property transactions and land registration documents.
Conclusion
Decimal is one of the most important traditional land measurement units in Bangladesh and eastern India. Equal to one-hundredth of an Acre, it continues to play a central role in property transactions, land registration, surveying, and real estate development. Because Decimal is identical to Satak, understanding this unit helps landowners, buyers, surveyors, and developers interpret land records and compare property sizes with confidence.