Convert Katha (Bihar) to Katha (Bengal)
Convert kathas to kathas instantly. 1 katha (bihar) = 1.8902676035 katha (bengal) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Katha (Bengal) to Katha (Bihar) converter for the reverse conversion.
Units explained
Katha (Bihar)
A Bihar katha is a traditional unit of land area equal to approximately 126.44 m² (1/20 of a pucca bigha in Bihar).
Defined as 1/20 of the Bihar pucca bigha. Like other regional kathas, the actual size varies with the local bigha.
Bihar kathas appear in land records and property transactions across Bihar.
Traditional regional unit.
Katha (Bengal)
A Bengal katha is a traditional unit of land area equal to approximately 66.89 m² (1/20 of a Bengal bigha or 720 square feet). Used in West Bengal and Bangladesh.
Defined as 1/20 of the Bengal bigha during colonial standardization.
Bengal kathas are widely used in residential property descriptions in Kolkata, Dhaka, and other Bengali-speaking regions. Property advertisements often list area in kathas with chatak (1/16 katha) subdivisions.
Standardized in colonial Bengal.
Katha (Bihar) to Katha (Bengal) conversion formula
The relationship between kathas and kathas:
To convert kathas to kathas, multiply the value in kathas by 1.8902676035. To reverse, multiply kathas by 0.5290256248.
How to use this converter
Type a value into the calculator. The result in kathas updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Katha (Bengal) to Katha (Bihar) converter for the reverse direction.
Step-by-step: convert kathas to kathas
- Write down the value in kathas (katha).
- Multiply that value by the factor 1.8902676035.
- The product is the equivalent value in kathas (katha).
- To reverse, multiply the katha (bengal) value by 0.5290256248.
Worked examples
Example 1 — Convert 1 katha to katha:
1 × 1.8902676035 = 1.8902676035 katha
Example 2 — Convert 100 katha to katha:
100 × 1.8902676035 = 189.0267603528 katha
Katha (Bihar) to Katha (Bengal) conversion table
Standard reference values for converting kathas to kathas:
| Katha (Bihar) [katha] | Katha (Bengal) [katha] |
|---|---|
| 0.01 | 0.018902676 |
| 0.1 | 0.1890267604 |
| 1 | 1.8902676035 |
| 2 | 3.7805352071 |
| 3 | 5.6708028106 |
| 4 | 7.5610704141 |
| 5 | 9.4513380176 |
| 10 | 18.9026760353 |
| 20 | 37.8053520706 |
| 30 | 56.7080281058 |
| 40 | 75.6107041411 |
| 50 | 94.5133801764 |
| 100 | 189.0267603528 |
| 500 | 945.1338017641 |
| 1000 | 1890.2676035282 |
Frequently asked questions
How many kathas is 1 katha (bihar)?
How do I convert kathas to kathas?
How do I convert kathas back to kathas?
How many kathas is 100 kathas?
Popular area unit conversions
Convert Katha (Bihar) to other area units
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Indian Subcontinent (15 units)
Sources & references
Conversion factor (1 katha = 1.8902676035 katha) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.