Bihar Land Calculator • बिहार जमीन माप
Convert a plot between nine area units using the Katha standard confirmed for your location.
How to use this tool
- Choose the unit used in your document, enter the area, then check the square-feet-per-Katha field.
- Read the result in the unit needed for your next calculation. Keep the local standard with any result you share.
Worked example
A plot recorded as 2 Katha, using 1,361.25 sq ft per Katha, is 2,722.5 sq ft. Under the stated ratios it is also 40 Dhur, 0.1 Bigha and 6.25 Decimal. These are different descriptions of the same area.
How it works
Enter the square feet in one Katha according to your local measurement convention. The initial 1,361.25 value is an illustrative convention, not an official statewide or district standard.
This tool assumes 20 Dhur = 1 Katha, 20 Dhurki = 1 Dhur and 20 Katha = 1 Bigha. Do not use it if those ratios differ in your local records.
One acre is 43,560 square feet; one Decimal/Dismil is 435.6 square feet. One square metre is approximately 10.7639104167 square feet. Conversion does not determine ownership, surveyed area or a legal boundary.
Local check: compare the unit and square-feet-per-Katha convention in the deed or revenue record before comparing two results. Displayed fractions are rounded; use a survey for boundaries or legal area.
FAQ
Why must I enter the local standard?
Katha is a customary unit. This site does not verify district-specific standards. Use the convention confirmed in your document or by the local revenue office.
Is one Katha the same size everywhere in Bihar?
No. Local conventions can differ. Enter the value confirmed in your local records; do not infer it from a district name alone.
Why can another calculator show a different answer?
It may use a different square-feet-per-Katha value. Compare the measurement standard before comparing the results.