Convert Katha (Assam) to Acre
Convert kathas to acres instantly. 1 katha (assam) = 0.0666467924 acre — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Acre to Katha (Assam) converter for the reverse conversion.
Units explained
Katha (Assam)
An Assam katha is a traditional unit of land area equal to approximately 269.71 m² (1/5 of an Assam bigha). It is larger than the Bengal katha despite sharing the name.
Defined as 1/5 of the Assam bigha. The same word 'katha' refers to different sizes in different regional systems.
Assam kathas appear in property records across Assam, particularly for agricultural and rural land transactions.
Traditional regional unit; relationship to bigha standardized as 1:5 in Assam.
Acre
An acre is an imperial unit of area equal to exactly 4046.8564224 m². It is the most widely used non-metric unit for land area, particularly in the US, UK, and India.
Originally defined in medieval England as the area one yoke of oxen could plow in a day, approximately 40 perches by 4 perches. Standardized via the 1959 International Yard and Pound Agreement.
Acres are the standard land measurement unit in the US (real estate, agriculture), the UK (rural property), and widely used in India (alongside hectares and traditional regional units). 1 acre = 4840 sq yd = 43,560 sq ft = 0.4047 hectare.
Medieval English farming origin; modern exact value standardized in 1959.
Katha (Assam) to Acre conversion formula
The relationship between kathas and acres:
To convert kathas to acres, multiply the value in kathas by 0.0666467924. To reverse, multiply acres by 15.0044730355.
How to use this converter
Type a value into the calculator. The result in acres updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Acre to Katha (Assam) converter for the reverse direction.
Step-by-step: convert kathas to acres
- Write down the value in kathas (katha).
- Multiply that value by the factor 0.0666467924.
- The product is the equivalent value in acres (ac).
- To reverse, multiply the acre value by 15.0044730355.
Worked examples
Example 1 — Convert 1 katha to ac:
1 × 0.0666467924 = 0.0666467924 ac
Example 2 — Convert 100 katha to ac:
100 × 0.0666467924 = 6.6646792436 ac
Katha (Assam) to Acre conversion table
Standard reference values for converting kathas to acres:
| Katha (Assam) [katha] | Acre [ac] |
|---|---|
| 0.01 | 0.0006664679 |
| 0.1 | 0.0066646792 |
| 1 | 0.0666467924 |
| 2 | 0.1332935849 |
| 3 | 0.1999403773 |
| 4 | 0.2665871697 |
| 5 | 0.3332339622 |
| 10 | 0.6664679244 |
| 20 | 1.3329358487 |
| 30 | 1.9994037731 |
| 40 | 2.6658716974 |
| 50 | 3.3323396218 |
| 100 | 6.6646792436 |
| 500 | 33.3233962178 |
| 1000 | 66.6467924355 |
Frequently asked questions
How many acres is 1 katha (assam)?
How do I convert kathas to acres?
How do I convert acres back to kathas?
How many acres is 100 kathas?
Popular area unit conversions
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Metric / SI (5 units)
Imperial / US Customary (3 units)
Indian Subcontinent (15 units)
Sources & references
Conversion factor (1 katha = 0.0666467924 ac) 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.