Convert Acre to Katha (Bengal)
Convert acres to kathas instantly. 1 acre = 60.5001707639 katha (bengal) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Katha (Bengal) to Acre converter for the reverse conversion.
Units explained
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 (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.
Acre to Katha (Bengal) conversion formula
The relationship between acres and kathas:
To convert acres to kathas, multiply the value in acres by 60.5001707639. To reverse, multiply kathas by 0.016528879.
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 Acre converter for the reverse direction.
Step-by-step: convert acres to kathas
- Write down the value in acres (ac).
- Multiply that value by the factor 60.5001707639.
- The product is the equivalent value in kathas (katha).
- To reverse, multiply the katha (bengal) value by 0.016528879.
Worked examples
Example 1 — Convert 1 ac to katha:
1 × 60.5001707639 = 60.5001707639 katha
Example 2 — Convert 100 ac to katha:
100 × 60.5001707639 = 6050.0170763941 katha
Real-world example — Maritime exclusion zone
A 200-acre exclusion zone (a common maritime boundary) converts to a different value in kathas that's useful when describing the same zone in everyday land-distance units.
200 ac × 60.5001707639 = 12100.0341527882 katha
Real-world example — Coastal cruise distances
A 10-acre coastal sailing route converts to a different value in kathas — useful for cruise operators who switch between maritime, aviation, and road-distance units depending on the leg of the trip.
10 ac × 60.5001707639 = 605.0017076394 katha
Real-world example — Road-sign distances across systems
A 100-acre road sign converts cleanly into kathas — exactly the conversion drivers planning trips abroad rely on when reading road signs in a different measurement system.
100 ac × 60.5001707639 = 6050.0170763941 katha
Acre to Katha (Bengal) conversion table
Standard reference values for converting acres to kathas:
| Acre [ac] | Katha (Bengal) [katha] |
|---|---|
| 0.01 | 0.6050017076 |
| 0.1 | 6.0500170764 |
| 1 | 60.5001707639 |
| 2 | 121.0003415279 |
| 3 | 181.5005122918 |
| 4 | 242.0006830558 |
| 5 | 302.5008538197 |
| 10 | 605.0017076394 |
| 20 | 1210.0034152788 |
| 30 | 1815.0051229182 |
| 40 | 2420.0068305576 |
| 50 | 3025.008538197 |
| 100 | 6050.0170763941 |
| 500 | 30250.0853819704 |
| 1000 | 60500.1707639408 |
Frequently asked questions
How many kathas is 1 acre?
How do I convert acres to kathas?
How do I convert kathas back to acres?
How many kathas is 100 acres?
Popular area unit conversions
Convert Acre to other area units
Show all Acre conversions
Metric / SI (16 units)
Imperial / US Customary (14 units)
US Survey (5 units)
Indian Subcontinent (16 units)
Other Regional (10 units)
Scientific / Physics (5 units)
Historical / Pre-metric European (6 units)
Sources & references
Conversion factor (1 ac = 60.5001707639 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 Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.