Standard Classification of Land Measurements Units

In existing Land Record databases, attribute “area” is used to capture information about the area of a land parcel. Different traditional units like Kanal, Marla, Cents, Guntas, Bigha, Biswa, Biswansi, Sarsaai are used for recording the area of a land parcel.

Area units are different within the state and sometimes same unit may have different conversion factors when used in different states. For example, Bigha is used in practice in both Assam and also in some states like Delhi, Rajasthan, Haryana etc. Both the Bigha units have different conversion factors to hectares

Different Area unit name

1. Hectares 
2. Ares 
3. Centi-are 
4. Sq metres Sq yards 
5. Sq feet 
6. Acres 
7. Cents 
8. Guntas 
9. Bigha
10. Biswa 
11. Biswansi
12. Kanal 
13. Marla 
14. Karam 
15. Sarsaai
16. Kila Bigha(Assam) 
17. Katha (Assam) 
18. Lessa 
19. Shatak 
20. Sq cm 
21. Desi 
22. Sq inch 
23. Dismil 
24. Dur 
25. Katha (Jharkhand)

Conversion Factors 

1. 1 centi-are = 1 Sq metre 
2. 1 centi-are = 10.76 Sq.feet 
3. 100 Centi-are = 1 Are 
4. 100 Are = 1 hectare 
5. 100 Sq metre = 1 Are 
6. 1 hectare = 100m x 100m = 10000 Sq metre 
7. 1 hectare = 404.68458 Acre(Tripura) 
8. 40 Are = 1 Acre 
9. 1 Lessa = 144 Sq feet 
10. 1 Katha = 5 Lessa or 720 Sq feet 
11. 1 Bigha(Assam) = 4 Katha or 20 Lessa or 2880 Sq feet 
12. 1 Sq metre = 10000 Sq cm (Gujarat) 
13. 2.47105 Acres = 1 Hectare (Kerala) 
14. 1 Are = 2.47105 cents (Kerala) 
15. 1 Acre = 100 cents (Kerala,Tamil nadu) 
16. 1 Cent = 40 Sq metres or 435 Sq feet 
17. 1 Acre = 40 Guntas(Andhra Pradesh and Karnataka) 
18. 1 Gunta = 100 Sq metres (around 1100 sq feet) 
19. 1 Acre = 121 Sq yards 
20. 1 Kuncham = 10 cents(Andhra Pradesh) 
21. 1 Sq link = 0.0404687 Sq metre (Kerala) 
22. Shahjahani Jarib(165 feet) (Rajasthan) 
23. 1 Bigha = 1 Jarib x 1 Jarib = 165’ x 165’ = 27225 Square Feet 
24. 1 Bigha(Shahjahani Jarib) = 0.253 Hectare Gantari Jarib(132 feet) (Rajasthan) 
25. 1 Bigha = 1 Jarib x 1 Jarib = 132’ x 132’ = 17424 Square Feet 
26. 1 Bigha(Gantari Jarib) = 0.16 Hectare 
27. 1 Bigha = 20 Biswansi (Rajasthan) 
28. 1 Acre = 4046.94 Sq metre (Jharkhand) 
29. 1 Dismil = 40.46 Sq metre (Jharkhand) 
30. 1 Katha(Jharkhand) = 66.89 Sq metre (Jharkhand) 
31. 1 Dur = 10 Sq metre (Jharkhand) 

Before Bandobust(Settlement) 

1. 1 Karam = 57.157” (Haryana) 
2. 1 Biswansi = 1 Karam x 1 Karam (Haryana) 
3. 20 Biswansi = 1 Biswa (Haryana) 
4. 1 Bigha = 20 Biswa (Haryana) 
5. 4 Bigha-16 Biswa = 1 Acre (Haryana) 
6. 2.47 acre = 1 hectare(CG)

Government Settlement 

1. 1 Karam = 57.157” (Haryana) 
2. 20 Biswansi = 1 Biswa (Haryana) 
3. 1 Bigha = 20 Biswa (Haryana) 
4. 4 Bigha = 1 Kila (Haryana) 
5. 1 Kila = 40 Karam x 40 Karam (Haryana) 

After Bandobust(Settlement) 

1. 1 Karam = 66” (Haryana) 
2. 1 Sarsaai = 1 Karam x 1 Karam (Haryana) 
3. 9 Sarsaai = 1 Marla (Haryana) 
4. 20 Marla = 1 Kanal (Haryana) 
5. 8 Kanal = 1 Acre (Ghuman) (Haryana) 
6. 1 Acre = 36 Karam x 40 Karam (North to South, East to West) (Haryana) 
7. 2.5 Acre = 1 Hectare (CG) 

Source : http://dolr.nic.in/dolr/mpr/mastercodes/areaunitcodes.pdf