Units use to measure land area in nepal

In Nepal, some customary units of measurement are still used, although the metric system has been the official standard since 1968.

Table for list of units used to measure land area in Nepal
This is the list of units used in Nepal to calculate land area in Nepal.  All the commonly used measurement units are listed below.
1 Bigha  = 20 Kattha
1 Bigha  = 6772.63 m²
1 Bigha = 72900 sq.ft.
1 Bigha  = 13.31 Ropani
1 Kattha  = 20 Dhur
1 Kattha  = 338.63 m²
1 Kattha  = 3645 sq.ft.
1 Dhur  = 16.93 m²
1 Dhur  = 182.25 sq.ft.
1 Ropani = 16 aana
1 Ropani = 64 Paisa
1 Ropani = 508.72 m²
1 Ropani = 5476 sq.ft.
1 Ropani = 256 Daam
1 Ropani = 4 Matomuri
1 Khetmuri = 25 Ropani
1 Aana = 4 Paisa
1 Aana = 31.80 m²
1 Aana  = 342.25 sq. ft.
1 Aana = 16 Daam
1 Paisa  = 4 Daam
1 Paisa = 7.95 m²
1 Paisa = 85.56 sq. ft.
1 Daam = 1.99 m²
1 Daam = 21.39 sq. ft.
1 Haath = 1.5 ft.
Length

The kos (kosh, krosh, koss) is a very ancient measure of distance, measuring about 2.25 miles or 3.7 km. [3]
1 angul = approx. 0.75 inch
4 angul = 1 dharnugrah (bow grip) = 3 in
8 angul = 1 dhanurmushti (fist with thumb raised) = 6 in
12 angul = 1 vitastaa ( span ) = 9 in
2 vittaa ( cubit ) = 18 in
4 haath = 1 dand or dhanush (bow) = 6 ft
2000 dand = 1 kos or Gorut = 4000 yards or 2.25 miles
4 kos = 1 yojan = 9 miles
Area
Terai region
In southern parts of Nepal, the customary units are those used elsewhere in South Asia:
1 kattha = 20 dhur
1 bigha = 20 kattha
Mountainous regions
A different system is used in hilly regions:
1 paisa = 4 dam (daam)
1 ana = 4 paisa
[4]
1 ropani = 16 ana
Conversions
1 ropani = 74 feet × 74 feet
1 bigha = 13 ropani
1 kattha = 442 square yards or 338 square meters