How many Decimal is 1 Katha?

1 Katha (Bihar) equals 3.1244 Decimal (Dismil). To convert, multiply the Katha figure by 3.1244.

How do I convert Katha to Decimal?

Multiply the number of Katha by 3.1244. For example, 10 Katha = 31.2443 Decimal.

How many Katha is 1 Decimal?

1 Decimal (Dismil) equals 0.320059 Katha (Bihar).

Does this value change from state to state?

Yes. Bigha, Biswa and Katha are not standardised by law — their size is fixed by local revenue convention and varies between states and sometimes between districts. Check the state-wise table on this page and confirm the local value with the Patwari or Tehsildar before any transaction.

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Katha to Decimal Converter

कट्ठा से डिसमिल — instant conversion, state-wise values and formula.

1 Katha = 3.1244 Decimal

1 कट्ठा = 3.1244 डिसमिल

Enter Katha

3.1244

Decimal (Dismil)

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⚠️ Before you rely on this figure. A deed reading "10 Bigha" means about 6.25 acres in Rajasthan Pucca country but only about 2 acres in Himachal Pradesh. Confirm which convention your revenue record follows before agreeing a price.

Formula

Decimal = Katha × 3.1244

Katha = Decimal × 0.320059

Katha to Decimal conversion table

Katha	Decimal
1 Katha	3.1244 Decimal
2 Katha	6.2489 Decimal
3 Katha	9.3733 Decimal
5 Katha	15.6221 Decimal
10 Katha	31.2443 Decimal
20 Katha	62.4885 Decimal
50 Katha	156.2213 Decimal
100 Katha	312.4426 Decimal

State-wise values

Because Bigha is set by local revenue convention rather than by law, the answer changes depending on where the land is. These are the conventions most widely used in each state.

State	Convention	1 Katha =
Rajasthan	Pucca Bigha	62.5 Decimal
Rajasthan	Kacha Bigha	40 Decimal
Uttar Pradesh	Western UP	61.9835 Decimal
Uttar Pradesh	Eastern UP	45.9137 Decimal
Madhya Pradesh	Standard	27.5482 Decimal
Bihar	Standard	62.4885 Decimal
West Bengal	Standard	33.0579 Decimal
Jharkhand	Standard	62.4885 Decimal
Haryana	Pucca Bigha	62.5 Decimal
Punjab	Standard	20.8219 Decimal
Himachal Pradesh	Standard	20 Decimal
Uttarakhand	Standard	15.6198 Decimal
Gujarat	Vigha	40 Decimal
Assam	Standard	33.0579 Decimal
Maharashtra	Uses Guntha / Acre, not Bigha	—

Values are widely used references compiled from public sources. District-level variation exists — always confirm locally.

About these units

Katha (कट्ठा) is the common sub-unit of Bigha across Bihar, Jharkhand and West Bengal. The Bihar Katha of about 1,361 sq ft is used here — the Bengal Katha is much smaller at 720 sq ft, so always confirm which convention the deed follows.

Decimal (also written Dismil or Desimal) is one-hundredth of an acre — 435.6 sq ft. It is widely used in Bihar, Jharkhand, Odisha and West Bengal revenue records.

Related conversions

Bigha To Acre Bigha To Square Feet Bigha To Hectare Bigha To Square Meter Acre To Bigha Acre To Square Feet

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Reading your land record

The area on a jamabandi or khasra is usually written in hectares, with the local unit alongside. Our guide to reading land documents shows exactly which field holds the area, and the land glossary explains the revenue terms around it. For state-specific rules and official portal links, see the state guides.

Please note. AgriZameen is an independent information platform. It is not a government body and is not affiliated with, or endorsed by, any state revenue or land-records department. Land units such as Bigha, Biswa and Katha are set by local revenue convention and are not standardised by law — the values here are widely used references for general guidance, not legal measurements. Before any registry, sale, purchase, loan or other transaction, confirm the applicable local unit with the Patwari / Tehsildar or your official state land-records portal, and consult a qualified advocate. This page is not legal, financial or investment advice.