Katha to Square Feet in Bihar (1 Katha = 1,361 sq ft)

In Bihar a katha is much bigger than the 720 sq ft katha of Bangladesh and West Bengal. The Patna standard is 1 katha = 1,361 square feet, divided into 20 dhur and grouped 20 to a bigha. This converter uses the Bihar units, with dhur, dhurki, bigha, decimal and acre on the same list.

1 katha = 1,361 square feet (Bihar) 1 katha = 20 dhur, 1 dhur = 68.05 sq ft, 20 katha = 1 bigha = 27,220 sq ft.

Bihar land units

Unit	Relation	Square feet
Dhurki	20 dhurki = 1 dhur	3.4025
Dhur	20 dhur = 1 katha	68.05
Katha	20 katha = 1 bigha	1,361
Bigha	1.6 bigha = 1 acre	27,220
Decimal	100 decimal = 1 acre	435.6
Acre		43,560

The katha is not uniform across Bihar. Patna, Nalanda and central districts use about 1,361 sq ft; some northern districts (Muzaffarpur, Darbhanga) use a katha near 750 to 1,000 sq ft, and the dhur changes with it. The registry office or the khatiyan for the plot is the final word.

Katha to square feet formula (Bihar)

square feet = katha × 1,361   katha = square feet ÷ 1,361

Example: a 2.5 katha plot in Patna is 2.5 × 1,361 = 3,402.5 sq ft. A 10 dhur plot is 10 × 68.05 = 680.5 sq ft.

Katha to square feet table (Bihar)

Katha	Square Feet
1 Katha	1,361 Square Feet
2 Katha	2,722 Square Feet
3 Katha	4,083 Square Feet
4 Katha	5,444 Square Feet
5 Katha	6,805 Square Feet
6 Katha	8,166 Square Feet
7 Katha	9,527 Square Feet
8 Katha	10,888 Square Feet
9 Katha	12,249 Square Feet
10 Katha	13,610 Square Feet
15 Katha	20,415 Square Feet
20 Katha	27,220 Square Feet
25 Katha	34,025 Square Feet
30 Katha	40,830 Square Feet
40 Katha	54,440 Square Feet
50 Katha	68,050 Square Feet
75 Katha	1,02,075 Square Feet
100 Katha	1,36,100 Square Feet

Dhur to square feet table

Dhur	Square Feet
1 Dhur	68.05 Square Feet
2 Dhur	136.1 Square Feet
3 Dhur	204.15 Square Feet
4 Dhur	272.2 Square Feet
5 Dhur	340.25 Square Feet
10 Dhur	680.5 Square Feet
15 Dhur	1,020.75 Square Feet
20 Dhur	1,361 Square Feet

Frequently asked questions

How many square feet in 1 katha in Bihar?

1,361 square feet by the Patna standard, which is 126.4 square metres or 151.2 square yards.

How many dhur in 1 katha?

20 dhur. One dhur is 68.05 sq ft and one dhurki is 1/20 of a dhur.

How many katha in 1 bigha in Bihar?

20 katha, so one bigha is 27,220 sq ft, or 0.625 acre.

Why is a Bihar katha bigger than a Kolkata katha?

Both are 1/20 of a bigha, but the Bihar bigha (27,220 sq ft) is almost twice the Bengal bigha (14,400 sq ft). Use the standard katha converter for Bangladesh and West Bengal.