Free calculator · West Bengal
Land Share Calculator (khatian share to katha and decimal)
Enter the plot (dag) area and each owner's share as written in the khatian. See how much land each share is in decimal, katha and chatak, sq ft and bigha.
Quick answer: Owner's land = plot (dag) area × share. For example, a 0.5 share of a 33 decimal plot is 16.5 decimal, which is 7,187.4 sq ft or 9 katha 15.72 chatak.
| Owner | Share | Decimal | Katha + chatak | Sq ft | Bigha |
|---|---|---|---|---|---|
| Owner 1 | 0.5 | 16.5 | 9 K 15.72 Ch | 7,187.4 | 0.499125 |
| Owner 2 | 1/4 | 8.25 | 4 K 15.86 Ch | 3,593.7 | 0.249563 |
| Owner 3 | 1/4 | 8.25 | 4 K 15.86 Ch | 3,593.7 | 0.249563 |
| Whole plot | 1 | 33 | 19 K 15.44 Ch | 14,374.8 | 0.99825 |
What the share in a khatian means
A khatian (record of rights, often called a porcha) lists the plots, or dags, recorded under one or more owners. For each plot it gives the plot's area and each owner's share. In West Bengal records, areas are usually written in acres or decimals, and the share as a decimal such as 0.3330 or 0.5000.
- The share applies to that plot's area, not to all the land in the khatian. If a khatian lists three plots, the owner can hold a different share in each.
- A share of 1 means the owner holds the whole plot. Shares of all the owners of one plot should add up to 1, sometimes across more than one khatian.
- When land changes hands by sale, gift or inheritance, mutation updates the record of rights in the new owner's name and records the share they now hold. Mutation is applied for online on banglarbhumi.gov.in and is handled by the BL&LRO (Block Land and Land Reforms Office).
You can look up a khatian or plot on banglarbhumi.gov.in, the Land and Land Reforms Department's portal, under the khatian and plot information service. Check the share and area there before you rely on any figure.
How it is calculated
- Owner's land = plot (dag) area × share.
- A fraction share is turned into a decimal first: 1 / 3 = 0.333333.
- The result is converted with the West Bengal units: 1 decimal (satak) = 435.6 sq ft, 1 katha = 16 chatak = 720 sq ft, 1 chatak = 45 sq ft, 1 bigha = 20 katha = 14,400 sq ft, 1 acre = 100 decimal.
Worked example
A plot of 33 decimal is recorded with three owners: A holds 0.5, and B and C hold 1/4 each.
- Plot area: 33 × 435.6 = 14,374.8 sq ft (1 bigha minus a little, since 1 bigha is 14,400 sq ft).
- Owner A: 33 × 0.5 = 16.5 decimal = 7,187.4 sq ft = 9 katha 15.72 chatak.
- Owners B and C: 33 × 0.25 = 8.25 decimal each = 3,593.7 sq ft = 4 katha 15.86 chatak.
Open this example in the calculator.
Sources and limits
- Khatian, plot and mutation services: Land and Land Reforms and Refugee Relief and Rehabilitation Department, Government of West Bengal, banglarbhumi.gov.in.
- West Bengal land units as used across this site. See West Bengal Land Measurement Units Explained.
- Conventions last checked on 15 October 2026.
This tool only turns a recorded share into an area. It does not say who inherits land or what share they should get, and it is not legal advice. The area that counts is the one recorded in the khatian. For costs when land is transferred, see our West Bengal stamp duty guide and the stamp duty calculator. To work out a plot's area from its sides, use the plot area calculator.
Frequently asked questions
What does the share column in a khatian mean?
It is the part of the plot (dag) that the owner named in that khatian holds. A share of 1 means the whole plot. A share of 0.5 means half of it. Multiply the plot area by the share to get the owner's land.
Does the share apply to my whole land or to one plot?
To one plot. A khatian can list several plots, and the owner can hold a different share in each. Work out each plot separately, using that plot's area and that plot's share, then add them up if you need a total.
How do I convert a 0.333 share of 33 decimal into katha?
33 × 0.333 = 10.989 decimal. 10.989 × 435.6 = 4,786.81 sq ft. Divide by 720 to get 6.65 katha, which is 6 katha 10.37 chatak.
Why do the shares not add up to exactly 1?
Shares like one third are written as rounded decimals, such as 0.333 or 0.3333, so three of them add up to a little less than 1. A small gap like this is rounding. A big gap usually means other owners hold the rest, sometimes in a different khatian.
Will this calculator tell me who inherits the land?
No. It only turns a recorded share into an area. Who inherits, and in what share, depends on the law that applies to the family and on any will or deed. Ask a lawyer, and get the share recorded through mutation at the BL&LRO (Block Land and Land Reforms Office).
Rates and conventions last checked: .