Land Measurement Converter Bangladesh
Shotangsho, katha, bigha, acre and square feet with the standard Bangladesh values, plus area from side lengths and a price calculator. জমির হিসাব — শতাংশ থেকে কাঠা, বিঘা, একর, বর্গফুটLast updated: October 2026.
Land measurement table: shotangsho, katha, bigha
| Unit | Square feet | Shotangsho | Katha |
|---|---|---|---|
| 1 shotangsho / shotok / decimal (শতাংশ) | 435.6 | 1 | 0.605 |
| 1 katha (কাঠা) | 720 | 1.653 | 1 |
| 1 bigha (বিঘা) | 14,400 | 33.06 | 20 |
| 1 acre (একর) | 43,560 | 100 | 60.5 |
| 1 chhatak (ছটাক) | 45 | 0.1033 | 0.0625 |
| 1 ojutangsho (অযুতাংশ) | 4.356 | 0.01 | 0.00605 |
| 1 hectare (হেক্টর) | 107,639 | 247.1 | 149.5 |
Land converter
| Unit | Value |
|---|
Land area from side lengths (feet)
For a rectangle enter one length and one width. If the four sides differ, enter all four: the area is the average length times the average width, the field method used for a quick estimate.
Land price calculator
Sellers quote per katha in cities and per shotangsho or bigha elsewhere. Enter the rate in one unit and the size in another.
Shotangsho to katha
One shotangsho (শতাংশ), also called shotok or decimal, is one hundredth of an acre: 435.6 square feet. One katha (কাঠা) is 720 square feet. So 1 shotangsho = 0.605 katha, and 1 katha = 1.653 shotangsho. To convert shotangsho to katha, multiply by 0.605. To convert katha to shotangsho, multiply by 1.653.
| Shotangsho (decimal) | Katha | Square feet |
|---|---|---|
| 1 | 0.605 | 435.6 |
| 2 | 1.21 | 871.2 |
| 3 | 1.815 | 1,306.8 |
| 5 | 3.025 | 2,178 |
| 8 | 4.84 | 3,484.8 |
| 10 | 6.05 | 4,356 |
| 20 | 12.1 | 8,712 |
| 33 | 19.965 | 14,374.8 |
| 100 (1 acre) | 60.5 | 43,560 |
Katha, bigha and acre
20 katha make 1 bigha (বিঘা), so a bigha is 14,400 square feet. That equals 33.06 shotangsho, which is why people say “33 shotangsho = 1 bigha”. One acre (একর) is 100 shotangsho, 60.5 katha or 3.025 bigha. A katha divides into 16 chhatak (ছটাক) of 45 square feet each.
Khatians and porchas often write land in ojutangsho (অযুতাংশ), one ten-thousandth of an acre. 100 ojutangsho = 1 shotangsho. A record showing 0.0825 acre means 8.25 shotangsho, which is just under 5 katha.
How to work out land area (জমির হিসাব)
Measure the plot in feet. For a rectangle, area = length × width in square feet. Divide by 435.6 for shotangsho, by 720 for katha, or by 14,400 for bigha. A plot 60 feet by 40 feet is 2,400 square feet: 5.51 shotangsho or 3.33 katha.
When the four sides are unequal, add the two lengths and halve, add the two widths and halve, then multiply. This average method is a quick estimate. A surveyor (amin) splits an irregular plot into triangles for the exact figure, and the area in the registered deed and khatian is what counts legally.
Regional units: kani, gonda, kora
Chattogram, Noakhali, Cumilla and Sylhet use kani (কানি) and gonda (গণ্ডা): 20 gonda = 1 kani, and 4 kora = 1 gonda. The size of a kani is not the same everywhere. The converter uses the common 40-shotangsho kani (17,424 sq ft), which makes a gonda 2 shotangsho. Some areas use a much larger kani. Check which one your deed means before relying on a kani or gonda figure.
Why older converters give a bigger bigha
Before standardisation a bigha differed by district, and some tools still mix units. A common mistake is “1 bigha = 33 katha”: it is 33 shotangsho, which is 20 katha. This page uses 1 bigha = 20 katha = 14,400 square feet throughout. Related tools: home loan EMI and gold price by bhori.
Frequently Asked Questions
1 shotangsho is how many katha?
1 shotangsho (decimal) is 0.605 katha. One shotangsho is 435.6 square feet and one katha is 720 square feet, so 1 katha is 1.653 shotangsho.
How many shotangsho is 1 bigha?
33.06 shotangsho, usually said as 33. One bigha is 20 katha, which is 14,400 square feet.
How many square feet is 1 katha?
720 square feet in the standard Bangladesh measure. That is 16 chhatak of 45 square feet each.
How many katha is 1 acre?
60.5 katha. One acre is 43,560 square feet, 100 shotangsho or 3.025 bigha.
How do I convert shotangsho to square feet?
Multiply by 435.6. For example 5 shotangsho is 2,178 square feet and 10 shotangsho is 4,356 square feet.
What is ojutangsho in a khatian?
Ojutangsho is one ten-thousandth of an acre, 4.356 square feet. 100 ojutangsho make 1 shotangsho. A khatian area of 0.0825 acre is 825 ojutangsho, or 8.25 shotangsho.
How do I calculate land area in katha from feet?
Multiply length by width in feet to get square feet, then divide by 720. A plot of 60 by 40 feet is 2,400 square feet, which is 3.33 katha.
Is kani the same size everywhere?
No. Kani and gonda vary by district. This converter uses the common kani of 40 shotangsho with 20 gonda to a kani. Confirm the local size from your deed or the land office.