Bangladeshi Land Converter (All Units)

Convert katha, bigha, decimal, acre and more — instantly, in your browser.

Processed locally – files never leave your device

From

1 bigha = 14,400 sq ft

This amount in every unit

Unit	Value

Next: try Number to Bangla Words — Write numbers in Bangla words (taka format).

Buying land, checking a deed or comparing plots? This free Bangladeshi land converter changes katha, bigha, decimal, shotangsho, acre, hectare, square feet and square metres into each other instantly — type in either box and the other side updates, all in your browser.

It uses the standard Bangladesh factors: 1 bigha is 14,400 sq ft, 1 katha is 720 sq ft and 1 decimal is 435.6 sq ft. For amounts in words, use the Number to Bangla Words tool, and for the money side, the Percentage Calculator works out shares and rates.

How to use

Type the area into the left box and pick its unit (bigha is the default).
Pick the unit you want on the right — the result appears at once.
Type in the right box instead to convert the other way round.
Use the ⇄ Swap button to flip the two units, or Copy result to copy the answer.

Why use Toolsvine

Land deals turn on small numbers — a katha here, a decimal there — and a wrong conversion is expensive. This tool uses the standard Bangladesh factors and shows the value in every unit at once, so you can check a deed figure against the plot size in front of you. It runs locally, so the areas you type stay private.

The units Bangladesh actually uses

Land in Bangladesh is measured in a mix of old and new units. The everyday ones are katha and bigha for plots, decimal (also called shotangsho) for small areas and records, and acre for larger land — with square feet and square metres for construction. This converter knows all of them and converts instantly in either direction.

Conversion table (in square feet)

Unit	Square feet	Equal to
1 square foot	1	—
1 square metre	10.764	—
1 decimal / shotangsho	435.6	1/100 acre
1 katha	720	1.65 decimal
1 bigha	14,400	20 katha
1 acre	43,560	100 decimal
1 hectare	107,640	2.47 acre

The formulas

Every conversion goes through square feet: multiply the amount by its unit's square-feet value, then divide by the target unit's value. So 1 bigha is 14,400 ÷ 435.6 = 33.06 decimal, and 1 katha is 720 ÷ 435.6 = 1.65 decimal. A decimal and a shotangsho are the same unit under two names, so they always convert 1 to 1.

One warning: bigha varies by district

This tool uses the standard Dhaka bigha of 20 katha (14,400 sq ft), which is the figure used in most official records. Some districts historically use a different bigha — always check the deed or local record (khatian) before a transaction. The converter is exact for the standard units; the local definition is what varies.

Frequently asked questions

How many decimal are in 1 katha?

1 katha is 720 square feet, which is 720 ÷ 435.6 = 1.65 decimal. So 10 katha is about 16.5 decimal.

How many katha are in 1 bigha?

20 katha make 1 bigha, and 1 bigha is 14,400 square feet. In decimal that is 33.06, and in acres it is 0.33.

Is a shotangsho the same as a decimal?

They are the same unit. Shotangsho (শতাংশ) is the Bangla name for a decimal — one hundredth of an acre, 435.6 square feet. Either name converts 1 to 1.

How many decimal are in 1 acre?

1 acre is 100 decimal, or 43,560 square feet. In bigha that is just over 3 bigha (3.03), and in katha it is 60.5.

Does a bigha mean the same everywhere in Bangladesh?

This tool uses the standard Dhaka bigha of 20 katha (14,400 sq ft). Some districts use a different local bigha, so always confirm against the deed or khatian for the land in question.

Is my land area uploaded anywhere?

No. The conversion runs entirely in your browser with JavaScript. Your figures never leave your device, and the tool keeps working if you go offline after the page loads.

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