How to convert kathas to bighas
To convert kathas to bighas, multiply the value by the conversion factor 0.05. To go the other way, multiply by 20 (or divide by 0.05).
Worked example: 5 katha to bigha
- Write the value: 5 katha
- Multiply by 0.05: 5 × 0.05
- Result: 0.25 bigha
Katha to Bigha conversion table
Quick reference values, rounded to 6 significant digits.
| Katha (katha) | Bigha (bigha) |
|---|---|
| 0.1 katha | 0.005 bigha |
| 0.25 katha | 0.0125 bigha |
| 0.5 katha | 0.025 bigha |
| 1 katha | 0.05 bigha |
| 2 katha | 0.1 bigha |
| 3 katha | 0.15 bigha |
| 4 katha | 0.2 bigha |
| 5 katha | 0.25 bigha |
| 6 katha | 0.3 bigha |
| 7 katha | 0.35 bigha |
| 8 katha | 0.4 bigha |
| 9 katha | 0.45 bigha |
| 10 katha | 0.5 bigha |
| 12 katha | 0.6 bigha |
| 15 katha | 0.75 bigha |
| 20 katha | 1 bigha |
| 25 katha | 1.25 bigha |
| 30 katha | 1.5 bigha |
| 40 katha | 2 bigha |
| 50 katha | 2.5 bigha |
| 75 katha | 3.75 bigha |
| 100 katha | 5 bigha |
| 250 katha | 12.5 bigha |
| 500 katha | 25 bigha |
| 1,000 katha | 50 bigha |
Bigha to Katha
| bigha | katha |
|---|---|
| 1 bigha | 20 katha |
| 5 bigha | 100 katha |
| 10 bigha | 200 katha |
| 50 bigha | 1,000 katha |
| 100 bigha | 2,000 katha |
1 Katha in other area & land units
About Katha and Bigha
What is a katha (katha)?
A katha (কাঠা) is a traditional land unit. The standard katha used in Dhaka equals 720 square feet, or about 1.65 decimal. Values can differ by region.
What is a bigha (bigha)?
A bigha (বিঘা) equals 20 katha. The standard bigha in Bangladesh is 14,400 square feet, or about 33 decimal. Local values may vary.
Important for land buyers: traditional units like katha and bigha differ between districts. This converter uses the standard values used in Dhaka and most official calculations: 1 katha = 720 sq ft, 1 bigha = 20 katha = 14,400 sq ft, 1 decimal (shotok) = 435.6 sq ft, 1 acre = 100 decimal. Always confirm the local value written in your deed (দলিল) or with the land office (AC Land).
Where katha to bigha conversion is used
Area & land conversions are needed for buying and selling land, flats, deed (dolil) records, construction planning and farming. Converting between kathas and bighas is especially common when you compare products, read foreign specifications, or fill in forms that expect a specific unit.
Need every unit at once? Use the full Area & Land Converter.
Frequently asked questions
How many bighas are in 1 katha?
1 Katha equals 0.05 bigha.
How do I convert kathas to bighas?
Multiply the number of kathas by 0.05. For example, 5 katha × 0.05 = 0.25 bigha.
What is 5 katha in bigha?
5 katha = 0.25 bigha.
How many kathas are in 1 bigha?
1 Bigha equals 20 katha. Use the Bigha to Katha converter for the reverse direction.
Is this Katha to Bigha converter accurate?
Yes. It uses exact internationally defined conversion factors and the standard Bangladeshi values for traditional units, calculated with full floating-point precision. Results are displayed rounded for readability.