Convert Square Centimetre to Katha
The katha is not a fixed size โ it varies by state. Across the states below, 1 square centimetre = 0.0000003737469โ0.000002989975 katha. Pick your state for an accurate result; it runs entirely in your browser.
Square Centimetre to Katha by state
Because the katha differs from state to state, the table below gives the value in each state we cover. The square-foot column is the standard defining value; the metre and conversion columns are computed from it.
| State / region | 1 Katha (sq ft) | 1 Katha (mยฒ) | 1 Square Centimetre โ Katha | 1 Katha โ Square Centimetre |
|---|---|---|---|---|
| Bihar | 1,361.25 | 126.4643 | 0.0000007907372 katha | 1,264,643 cmยฒ |
| West Bengal (rural) | 720 | 66.89019 | 0.000001494988 katha | 668,901.9 cmยฒ |
| West Bengal (Kolkata) | 360 | 33.44509 | 0.000002989975 katha | 334,450.9 cmยฒ |
| Assam (1 bigha = 5 katha) | 2,880 | 267.5608 | 0.0000003737469 katha | 2,675,608 cmยฒ |
| Jharkhand (Ranchi) | 720 | 66.89019 | 0.000001494988 katha | 668,901.9 cmยฒ |
| Madhya Pradesh | 600 | 55.74182 | 0.000001793985 katha | 557,418.2 cmยฒ |
| Bangladesh * | 720 | 66.89019 | 0.000001494988 katha | 668,901.9 cmยฒ |
- * Bangladesh: Standardised nationwide in Bangladesh at 720 sq ft (16 chatak), with 20 katha to the bigha โ the pre-partition Bengal standard.
In India these land units vary by state and even by district, and local custom can differ from the standard value; in Bangladesh they are standardised nationwide. For any legal, property or financial purpose, confirm the value against your own land records โ the patwari or tehsil office in India, or your AC (Land) office and mouza records in Bangladesh โ before relying on it.
About square centimetre and katha
Square Centimetre: A square centimetre is a 1 cm ร 1 cm square โ 1/10,000 of a square metre.
Katha: A katha (also spelt kattha) is the common land unit across eastern India and Bangladesh. In most states 1 bigha = 20 katha, but in Assam 1 bigha = 5 katha, so the kathaโs size varies widely by state. Bangladesh is the exception that fixes it: there a katha is 720 sq ft everywhere.
Frequently asked questions
- How many katha are in 1 square centimetre?
- It depends on the state, because the katha is not a fixed size. In Bihar, 1 square centimetre = 0.0000007907372 katha. Across the states listed, the answer ranges from 0.0000003737469 to 0.000002989975 katha โ choose your state in the converter above for an accurate result.
- Why does the katha vary by state?
- The katha is a traditional unit recorded differently in each state's revenue system, and many states use a larger "pucca" and a smaller "kachha" version. There is no single national value, so the only correct conversion is the one for your specific state or district.
- How do I convert square centimetre to katha?
- Pick your state above so the tool uses that state's katha value, then type the amount. For example, in Bihar, multiply square centimetre by 0.0000007907372 to get katha.
- Which states is the katha used in?
- This converter covers: Bihar; West Bengal (rural); West Bengal (Kolkata); Assam (1 bigha = 5 katha); Jharkhand (Ranchi); Madhya Pradesh; Bangladesh. For legal or property transactions, always confirm the local value against your own land records โ the patwari or tehsil office in India, or your AC (Land) office and mouza records in Bangladesh.
Related area conversions
See all area unit conversions โ
Full state-by-state size reference (bigha, biswa, katha, dhur) โ
How we calculate this โ method, assumptions and limits
The exact conversion
1 square centimetre = 0.0000007907372 katha.
What we assume
The Katha is not a fixed size. It is defined by local revenue practice, so its area differs by state. This page defaults to Bihar; use the selector to switch, and the result changes with it.
Where the sources agree โ and where they donโt
We record a confidence level for every regional value from our research pass, and we publish it rather than hiding it. High means multiple independent references matched. Medium means the value is well attested but corroboration is thinner, so treat it as indicative and confirm against your local record.
| Region | 1 square centimetre in sq ft | Confidence |
|---|---|---|
| Bihar | 1361.25 | High |
| West Bengal (rural) | 720 | High |
| West Bengal (Kolkata) | 360 | Medium |
| Assam (1 bigha = 5 katha) | 2880 | High |
| Jharkhand (Ranchi) | 720 | High |
| Madhya Pradesh | 600 | Medium |
| Bangladesh | 720 | High |
Because the documented values genuinely differ between regions, we show each variant instead of averaging them into a single number. An average would be wrong everywhere.
- Bangladesh: Standardised nationwide in Bangladesh at 720 sq ft (16 chatak), with 20 katha to the bigha โ the pre-partition Bengal standard.
What this converter does not account for
- Local custom below state level. Districts and even individual villages can use a different working value from the state norm. The figure here is the state-level standard.
- Values marked medium confidence. These are the ones most worth checking against your own paperwork before you rely on them.
- Historic and pre-survey records. Older deeds may use a value that predates the current survey settlement for that area.
- Legal and transactional use. This is a calculation aid, not a legal document. For a sale, mutation or dispute, the figure that governs is the one in your official land record.
- Rounding in the displayed result. The underlying maths runs at full precision; what you see is rounded for readability, so a long chain of manual conversions may drift slightly.
Sources
- Department of Land Resources, Ministry of Rural Development (India) โ the central department responsible for land records and the Digital India Land Records Modernisation Programme, under which the state portals below are maintained.
- Bihar Bhumi โ Revenue & Land Reforms Department, Bihar โ the official Bihar land-record portal; the authority for katha, dhur and dhurki values used in Bihar revenue records.
- UP Bhulekh โ Uttar Pradesh land records โ the official Uttar Pradesh record-of-rights portal, used to corroborate bigha and biswa values for UP.
- Wikipedia: Bigha โ a cross-check on the historical spread of values, cited for corroboration rather than as a primary authority.
Where references disagree we show the documented variants rather than picking one. Every conversion factor on this site is recomputed and re-verified automatically on each build โ the check confirms exact round-trips and cross-unit consistency across all pairs, so a wrong figure fails the build rather than reaching this page.