Convert Chatak to Square Metre
1 chatak = 4.180637 square metre (m²). For example, 10 chatak = 41.80637 square metre and 100 chatak = 418.0637 square metre. Type any value below to convert chatak to square metre both ways — it runs entirely in your browser.
Quick answer: Chatak to Square Metre
1 Chatak = 4.180637 Square Metre (chatak → m²). To convert chatak to square metre, multiply by 4.180637. To convert square metre to chatak, multiply by 0.239198. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common chatak-to-square metre questions.
How to convert Chatak to Square Metre
To convert chatak to square metre, multiply the number of chatak by the conversion factor 4.180637, because 1 chatak = 4.180637 m². The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 m² = 0.239198 chatak, so you divide by 4.180637 (or multiply by 0.239198) to turn square metre back into chatak.
m² = chatak × 4.180637 ·
chatak = m² × 0.239198
- Write down the value you want to convert, in chatak.
- Multiply it by 4.180637.
- The result is the same area/length/quantity expressed in square metre.
Chatak to Square Metre — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 chatak is 20.90318 square metre because 5 chatak × 4.180637 = 20.90318 m².
| Chatak | Calculation | Square Metre |
|---|---|---|
| 1 chatak | 1 chatak × 4.180637 = 4.180637 m² | 4.180637 m² |
| 2 chatak | 2 chatak × 4.180637 = 8.361274 m² | 8.361274 m² |
| 3 chatak | 3 chatak × 4.180637 = 12.54191 m² | 12.54191 m² |
| 5 chatak | 5 chatak × 4.180637 = 20.90318 m² | 20.90318 m² |
| 7 chatak | 7 chatak × 4.180637 = 29.26446 m² | 29.26446 m² |
| 10 chatak | 10 chatak × 4.180637 = 41.80637 m² | 41.80637 m² |
| 12 chatak | 12 chatak × 4.180637 = 50.16764 m² | 50.16764 m² |
| 15 chatak | 15 chatak × 4.180637 = 62.70955 m² | 62.70955 m² |
| 20 chatak | 20 chatak × 4.180637 = 83.61274 m² | 83.61274 m² |
| 25 chatak | 25 chatak × 4.180637 = 104.5159 m² | 104.5159 m² |
| 50 chatak | 50 chatak × 4.180637 = 209.0318 m² | 209.0318 m² |
| 100 chatak | 100 chatak × 4.180637 = 418.0637 m² | 418.0637 m² |
Common Chatak to Square Metre conversions
These are the chatak-to-square metre values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 chatak = 4.180637 square metre
- 2 chatak = 8.361274 square metre
- 2.5 chatak = 10.45159 square metre
- 3 chatak = 12.54191 square metre
- 4 chatak = 16.72255 square metre
- 5 chatak = 20.90318 square metre
- 6 chatak = 25.08382 square metre
- 7 chatak = 29.26446 square metre
- 8 chatak = 33.44509 square metre
- 9 chatak = 37.62573 square metre
- 10 chatak = 41.80637 square metre
- 12 chatak = 50.16764 square metre
- 15 chatak = 62.70955 square metre
- 20 chatak = 83.61274 square metre
- 25 chatak = 104.5159 square metre
- 30 chatak = 125.4191 square metre
- 50 chatak = 209.0318 square metre
- 75 chatak = 313.5478 square metre
- 100 chatak = 418.0637 square metre
- 200 chatak = 836.1274 square metre
- 500 chatak = 2,090.318 square metre
- 1000 chatak = 4,180.637 square metre
Chatak to Square Metre conversion chart (both directions)
The chart below converts chatak to square metre and square metre to chatak side by side, so it works whichever way you need. 1 chatak = 4.180637 square metre, and 1 square metre = 0.239198 chatak.
| Chatak → Square Metre | Square Metre → Chatak |
|---|---|
| 0.25 chatak = 1.045159 m² | 0.25 m² = 0.0597995 chatak |
| 0.5 chatak = 2.090318 m² | 0.5 m² = 0.119599 chatak |
| 1 chatak = 4.180637 m² | 1 m² = 0.239198 chatak |
| 2 chatak = 8.361274 m² | 2 m² = 0.478396 chatak |
| 3 chatak = 12.54191 m² | 3 m² = 0.717594 chatak |
| 4 chatak = 16.72255 m² | 4 m² = 0.956792 chatak |
| 5 chatak = 20.90318 m² | 5 m² = 1.19599 chatak |
| 6 chatak = 25.08382 m² | 6 m² = 1.435188 chatak |
| 7 chatak = 29.26446 m² | 7 m² = 1.674386 chatak |
| 8 chatak = 33.44509 m² | 8 m² = 1.913584 chatak |
| 9 chatak = 37.62573 m² | 9 m² = 2.152782 chatak |
| 10 chatak = 41.80637 m² | 10 m² = 2.39198 chatak |
| 12 chatak = 50.16764 m² | 12 m² = 2.870376 chatak |
| 15 chatak = 62.70955 m² | 15 m² = 3.58797 chatak |
| 20 chatak = 83.61274 m² | 20 m² = 4.78396 chatak |
| 25 chatak = 104.5159 m² | 25 m² = 5.97995 chatak |
| 30 chatak = 125.4191 m² | 30 m² = 7.17594 chatak |
| 40 chatak = 167.2255 m² | 40 m² = 9.56792 chatak |
| 50 chatak = 209.0318 m² | 50 m² = 11.9599 chatak |
| 75 chatak = 313.5478 m² | 75 m² = 17.93985 chatak |
| 100 chatak = 418.0637 m² | 100 m² = 23.9198 chatak |
| 150 chatak = 627.0955 m² | 150 m² = 35.8797 chatak |
| 200 chatak = 836.1274 m² | 200 m² = 47.8396 chatak |
| 250 chatak = 1,045.159 m² | 250 m² = 59.7995 chatak |
| 500 chatak = 2,090.318 m² | 500 m² = 119.599 chatak |
| 1000 chatak = 4,180.637 m² | 1000 m² = 239.198 chatak |
Chatak vs Square Metre: which is bigger?
A chatak is the larger unit: one chatak equals 4.180637 square metres. Put another way, you need 4.180637 square metres to make a single chatak.
What is a Chatak? History, origin and usage
The chatak (also spelt chhatak or chittak) is a small land unit long used in the Bengali-speaking region, including West Bengal and Bangladesh. The same word is also a traditional Bengali unit of weight (one-sixteenth of a seer), an example of one sub-division name reused across measurement systems.
As a land unit it is a fixed fraction of the rural Bengal katha, used for small plots and in property paperwork in West Bengal and Bangladesh. It lets buyers and sellers describe plots smaller than a single katha.
Sixteen chatak make one rural Bengal katha of 720 square feet, so one chatak is 45 square feet. The dual life of the word, as both an area and a weight, reflects its deep roots in Bengali commerce.
What is a Square Metre? History, origin and usage
The square metre is the coherent SI derived unit of area, defined simply as the area of a square one metre on each side. It descends directly from the metre, which was introduced with the metric system in Revolutionary France in the 1790s.
It is the standard area unit worldwide for floor space, land, materials and scientific work, and is the base from which units like the hectare and square kilometre are built. Almost every country except a few uses the square metre for building and property area.
One square metre is about 10.76 square feet, and 10,000 square metres make one hectare. Its symbol, m squared, is the same in every language because it is a pure SI unit.
Convert 1 Chatak to other units
It can help to see a chatak next to the other units it is commonly compared with. One chatak (chatak) is equal to:
| 1 Chatak equals | Unit |
|---|---|
| 5 gaj | Gaj |
| 0.1652893 marla | Marla |
| 0.008264463 kanal | Kanal |
| 0.001033058 killa | Killa |
| 0.00004132231 murabba | Murabba |
| 0.1033058 decimal | Decimal |
| 0.1033058 cent | Cent |
| 0.04132231 guntha | Guntha |
| 0.001033058 ac | Acre |
| 0.0004180637 ha | Hectare |
| 45 ft² | Square Foot |
| 5 yd² | Square Yard |
| 4.180637 m² | Square Metre |
| 41,806.37 cm² | Square Centimetre |
| 4,180,637 mm² | Square Millimetre |
| 6,480 in² | Square Inch |
| 0.000004180637 km² | Square Kilometre |
| 0.04180637 are | Are |
| 0.004180637 daa | Decare |
| 0.000001614153 mi² | Square Mile |
| 0.001033058 ac | Acre |
| 5 yd² | Square Yard |
| 45 ft² | Square Foot |
| 0.0004180637 ha | Hectare |
| 1.487603 karam² | Square Karam |
| 0.01875 ground | Ground |
| 0.3125 lessa | Lessa |
| 0.00078125 pura | Pura |
Convert 1 Square Metre to other units
One square metre (m²) is equal to:
| 1 Square Metre equals | Unit |
|---|---|
| 1.19599 gaj | Gaj |
| 0.03953686 marla | Marla |
| 0.001976843 kanal | Kanal |
| 0.0002471054 killa | Killa |
| 0.000009884215 murabba | Murabba |
| 0.02471054 decimal | Decimal |
| 0.02471054 cent | Cent |
| 0.009884215 guntha | Guntha |
| 0.0002471054 ac | Acre |
| 0.0001 ha | Hectare |
| 10.76391 ft² | Square Foot |
| 1.19599 yd² | Square Yard |
| 10,000 cm² | Square Centimetre |
| 1,000,000 mm² | Square Millimetre |
| 1,550.003 in² | Square Inch |
| 0.000001 km² | Square Kilometre |
| 0.01 are | Are |
| 0.001 daa | Decare |
| 0.0000003861022 mi² | Square Mile |
| 0.0002471054 ac | Acre |
| 1.19599 yd² | Square Yard |
| 10.76391 ft² | Square Foot |
| 0.0001 ha | Hectare |
| 0.3558317 karam² | Square Karam |
| 0.004484963 ground | Ground |
| 0.07474938 lessa | Lessa |
| 0.239198 chatak | Chatak |
| 0.0001868734 pura | Pura |
Tips for converting Chatak to Square Metre
- To go from chatak to square metre, multiply by 4.180637; to go back, divide by 4.180637 (or multiply by 0.239198).
- For a quick mental estimate, remember that 1 chatak ≈ 4.180637 square metre, so 10 chatak ≈ 41.80637 square metre.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this Chatak to Square Metre converter
Type a number into the Chatak field and the equivalent in Square Metre appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Square Metre field to convert the other way (square metre to chatak). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 chatak = 4.180637 m²), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for chatak-to-square metre conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
Sources
- Department of Land Resources, Ministry of Rural Development (India) — the central department responsible for land records and the Digital India Land Records Modernisation Programme, under which the state portals are maintained.
- Bihar Bhumi — Revenue & Land Reforms Department, Bihar — the official Bihar land-record portal; the authority for the katha, dhur and dhurki values used in Bihar revenue records.
- UP Bhulekh — Uttar Pradesh land records — the official Uttar Pradesh record-of-rights portal, used to corroborate bigha and biswa values for UP.
- BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.
- NIST — Definitions of the SI base units — the US National Institute of Standards and Technology reference for the SI base units, used here as an independent cross-check on the base-unit definition.
Indian land units can vary by state and local custom. This converter uses the most widely accepted standard value; always confirm against your local revenue records (patwari / tehsil) for legal transactions.
Frequently asked questions
- How many square metre are in 1 chatak?
- 1 chatak = 4.180637 square metre (m²). To convert any number of chatak to square metre, multiply by 4.180637.
- How do I convert chatak to square metre?
- Multiply the number of chatak by 4.180637. For example, 10 chatak = 10 × 4.180637 = 41.80637 square metre, and 25 chatak = 104.5159 square metre.
- How many chatak are in 1 square metre?
- 1 square metre = 0.239198 chatak. So to convert square metre back to chatak, multiply by 0.239198.
- What is the formula to convert chatak to square metre?
- square metre = chatak × 4.180637. The reverse formula is chatak = square metre × 0.239198.
- How much is 100 chatak in square metre?
- 100 chatak = 418.0637 square metre. (And 1000 chatak = 4,180.637 square metre.)
- Which is bigger, a chatak or a square metre?
- A chatak is larger: 1 chatak = 4.180637 square metre.
- Is this chatak to square metre converter accurate?
- Yes — every value is computed from the exact 4.180637 m² per chatak factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert square metre to chatak too?
- Yes. The converter works both ways — enter a value in either field. 1 square metre = 0.239198 chatak.