Land Area Converter – Bigha, Katha, Chatak, Decimal and Acre

How to use the land area converter

1. Enter the area and choose its unit — for example 1 bigha.
2. The table shows the same area in every other unit, from katha and decimal to acre and square metre.
3. The West Bengal format line shows the area as bigha, katha and chatak.
4. To add up an area written in a deed (like 2 bigha 5 katha 8 chatak), enter the three numbers in Add up bigha, katha and chatak to see it in square feet, decimal, acre and square metre.
5. Tap Copy next to any value to use it elsewhere.

West Bengal land units

Example: converting a deed area

A deed says 2 bigha 5 katha 8 chatak.

• 2 bigha = 2 × 14,400 = 28,800 sq ft
• 5 katha = 5 × 720 = 3,600 sq ft
• 8 chatak = 8 × 45 = 360 sq ft
• Total = 32,760 sq ft, which is about 75.2 decimal or 0.752 acre

Example: decimal to katha

A plot of 5 decimal = 5 × 435.6 = 2,178 sq ft. Divide by 720 and you get about 3.03 katha — that is 3 katha and 0.4 chatak.

Why land units differ across India

Traditional units such as bigha, katha and biswa grew out of local practice, so the same name can mean very different sizes. A bigha in West Bengal is 14,400 sq ft, but bighas in other states can be much larger or smaller. Standard units — square feet, square metre, acre, hectare and decimal — are the same everywhere, so they are the safest way to compare areas between states.

We currently use West Bengal values for the traditional units. Other states will be added only after checking an official source.

Tips when dealing with land records

• Check the unit in the record. Land records (khatian, record of rights) may list area in decimal or acre even when people talk in bigha and katha.
• Write the area in two units in agreements — for example “3 katha (2,160 sq ft)” — to avoid confusion.
• Measure on the ground. The recorded area and the actual plot can differ; a survey settles it.
• Ask a professional before paying for land. This converter helps you understand numbers, not legal titles.

Who uses a land area converter

• Families dividing inherited land between members.
• Buyers and sellers comparing a plot’s size in katha and square feet.
• Farmers converting between bigha, decimal and acre for loans and schemes.
• Builders and engineers working with deeds that use local units.

For other units of length, weight and area, use the unit converter.