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Area Converter

Last updated 29 October 2026

Convert square feet, square metres, acres, hectares and Indian land units such as guntha, bigha and katha. Results appear as you type.

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State-wise Indian land units
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Region

Land units such as bigha, biswa and katha vary by region. Select your region for local units.

Area

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Common property areas

Converted area

Enter an area to see it in every unit.

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Compare two areas

For example a 10,000 sq ft warehouse against a 1 acre plot. Local units use the region chosen above (All India).

Property A

Property B

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Enter both areas to see them side by side, the difference and how many times larger one is.

Conversions are for reference. They do not replace official land records or a legal measurement: for a purchase, lease or registration, go by the area in the title documents and land records, and confirm local units with the revenue office.

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Area Converter on Farbe Spaces

Want the sources for a state's land units? The same converter on Farbe Spaces, our property marketplace, lists them state by state, beside land, plots and warehouses for sale and rent.
Area converter on Farbe Spaces

A floor plan in square metres, a warehouse quoted in square feet, a plot allotted in square yards and farmland registered in hectares or bigha: the same area is written in different units at every step of a property or logistics project. The area converter above changes any of them into all the others at once, with the values used in each Indian state for local land units.

Common area conversions

Square feet, square metres, square yards, acres and hectares have fixed international definitions, so these figures are the same in India, the UK, the USA and everywhere else. One foot is exactly 0.3048 metres, so one square foot is exactly 0.09290304 square metres.

Unit	Equals
1 square foot	0.0929 sq m · 144 sq in
1 square metre	10.764 sq ft · 1.196 sq yd
1 square yard (gaj, var)	9 sq ft · 0.8361 sq m
1 acre	43,560 sq ft · 4,840 sq yd · 4,046.86 sq m · 0.4047 ha · 40 guntha
1 hectare	2.4711 acres · 1,07,639.1 sq ft · 10,000 sq m · 100 are
1 are	100 sq m · 1,076.39 sq ft
1 guntha	1,089 sq ft · 121 sq yd · 101.17 sq m
1 cent (decimal)	435.6 sq ft · 40.469 sq m
1 ground	2,400 sq ft · 222.97 sq m
1 square kilometre	100 ha · 247.11 acres
1 square mile	640 acres · 2.59 sq km

Warehouse and factory floor areas in square metres

Warehouses, factory sheds and godowns in India are usually let and sold by the square foot, while drawings, tenders and buyers from abroad often work in square metres. A 929.03 sq m floor is a 10,000 sq ft one: compare like with like before you compare rents.

Square feet	Square metres	Square yards	Acres
500	46.452	55.556	0.01148
1,000	92.903	111.11	0.02296
2,000	185.81	222.22	0.04591
2,500	232.26	277.78	0.05739
5,000	464.52	555.56	0.1148
10,000	929.03	1,111.11	0.2296
20,000	1,858.06	2,222.22	0.4591
25,000	2,322.58	2,777.78	0.5739
50,000	4,645.15	5,555.56	1.1478
1,00,000	9,290.3	11,111.11	2.2957
2,00,000	18,580.61	22,222.22	4.5914

Rent converts the opposite way to area: ₹20 per sq ft a month is ₹215.28 per sq m a month, because a square metre holds 10.764 square feet. If you are planning how much space your stock needs, the CBM calculator works out the volume of your cargo first.

Plot sizes in square metres, square yards and square feet

Industrial estates such as GIDC and MIDC allot plots in square metres, and residential and commercial plots are often sold in square yards, also called gaj or var. This table turns the usual plot sizes into the other units.

Square metres	Square feet	Square yards	Acres
100	1,076.39	119.6	0.02471
200	2,152.78	239.2	0.04942
250	2,690.98	299	0.06178
500	5,381.96	598	0.1236
1,000	10,763.91	1,195.99	0.2471
2,000	21,527.82	2,391.98	0.4942
4,000	43,055.64	4,783.96	0.9884
5,000	53,819.55	5,979.95	1.2355
10,000	1,07,639.1	11,959.9	2.4711

Land in acres, hectares and guntha

Land records in many states, including Gujarat and Maharashtra, give area in hectares and ares, while sale deeds, brokers and listings often quote acres or guntha. One acre is exactly 43,560 sq ft, or 40 guntha.

Acres	Hectares	Square metres	Square feet	Guntha
0.25	0.1012	1,011.71	10,890	10
0.5	0.2023	2,023.43	21,780	20
1	0.4047	4,046.86	43,560	40
2	0.8094	8,093.71	87,120	80
5	2.0234	20,234.28	2,17,800	200
10	4.0469	40,468.56	4,35,600	400
25	10.117	1,01,171.41	10,89,000	1,000
50	20.234	2,02,342.82	21,78,000	2,000
100	40.469	4,04,685.64	43,56,000	4,000

Indian land units by state

Traditional units such as the bigha, biswa, katha, kanal and marla come from local revenue practice. The same name can mean a different area in another state, and sometimes in another district of the same state. That is why the converter asks for your region. Every value says how firm it is:

Fixed value: the unit is defined the same way wherever it is used.
Usual local value: the value generally used in that state's land records and transactions.
Varies by district: the value differs within the state. The figure shown is the most widely cited one, so treat the result as approximate.

Indian units with one value everywhere

Unit	Sq ft	Sq m	Value
Guntha1/40 acre = 121 sq yd = 1,089 sq ft (33 ft × 33 ft)	1,089	101.17	Fixed value
Cents1/100 acre = 435.6 sq ft	435.6	40.469	Fixed value
Decimal (dismil)1/100 acre = 435.6 sq ft; also written dismil or dhismil	435.6	40.469	Fixed value
Grounds2,400 sq ft, about 5.5 cents (Tamil Nadu). Some older references give about 2,190 sq ft; 2,400 sq ft is the figure used in property dealings.	2,400	222.97	Usual local value
Ankanam72 sq ft = 8 sq yd; 605 ankanam = 1 acre (Andhra Pradesh, Telangana). A 36 sq ft ankanam is reported around Tirupati.	72	6.689	Usual local value

Local units by state

Unit	Sq ft	Sq m	Value
Gujarat
Vigha (16 guntha)16 guntha = 1,936 sq yd; 2.5 vigha = 1 acre. Saurashtra and most of Gujarat. The Gujarat High Court (1991) records 2½ bigha to the acre in the former Saurashtra State.	17,424	1,618.74	Usual local value
Vigha (Gaekwadi, 1.7 to the acre)1 acre = 1.7 vigha, about 23.5 guntha. Areas of the former Baroda State (parts of today's Vadodara, Mehsana, Patan, Navsari and Amreli districts). Local tables round it to 25,600 sq ft (20 vasa of 1,280 sq ft) or to 24 guntha.	25,623.53	2,380.5	Varies by district
Rajasthan
Bigha (pucca)165 ft × 165 ft = 3,025 sq yd = 5/8 acre	27,225	2,529.29	Varies by district
Biswa (pucca)1/20 pucca bigha = 151.25 sq yd	1,361.25	126.46	Varies by district
Bigha (kachcha)132 ft × 132 ft = 1,936 sq yd = 0.4 acre	17,424	1,618.74	Varies by district
Biswa (kachcha)1/20 kachcha bigha = 96.8 sq yd	871.2	80.937	Varies by district
Uttar Pradesh
Bigha (pucca)3,025 sq yd = 5/8 acre = 20 biswa. The standard bigha of the old North-Western Provinces revenue surveys.	27,225	2,529.29	Varies by district
Biswa (pucca)1/20 pucca bigha = 20 biswansi	1,361.25	126.46	Varies by district
Biswansi (pucca)1/20 biswa	68.063	6.3232	Varies by district
Bihar
Bigha20 kattha (Patna standard) = 3,025 sq yd	27,225	2,529.29	Varies by district
Kattha (katha)1/32 acre = 3.125 decimal = 20 dhur. The Bihar Revenue Glossary gives about 1,361 sq ft for Patna and around, and says the value varies by region.	1,361.25	126.46	Varies by district
Dhur1/20 kattha = 20 dhurki	68.063	6.3232	Varies by district
West Bengal
Bigha20 katha = 1,600 sq yd	14,400	1,337.8	Usual local value
Katha (cottah)16 chatak = 80 sq yd. A Calcutta High Court judgment (2024) works in the same values (8 chittack = 360 sq ft). Some websites give 360 sq ft for a Kolkata katha; that is half a katha.	720	66.89	Usual local value
Chatak (chittack)1/16 katha = 5 sq yd	45	4.1806	Usual local value
Punjab
Kanal20 marla = 605 sq yd = 1/8 acre	5,445	505.86	Usual local value
Marla9 sarsai = 30.25 sq yd (revenue marla)	272.25	25.293	Usual local value
Sarsai1 square karam (5.5 ft × 5.5 ft)	30.25	2.8103	Usual local value
Killa (ghumaon)8 kanal = 1 acre	43,560	4,046.86	Fixed value
Murabba25 killa (acres)	10,89,000	1,01,171.41	Usual local value
Marla (25 sq yd)25 sq yd. Urban plots (for example GMADA, Mohali) and districts measured with a 60-inch karam: Amritsar, Gurdaspur, Ferozepur, Faridkot.	225	20.903	Varies by district
Kanal (500 sq yd)20 marla of 25 sq yd = 500 sq yd	4,500	418.06	Varies by district
Bigha (4 kanal)4 kanal = ½ acre. Only where the standard karam is used.	21,780	2,023.43	Varies by district
Bigha (kachcha)1,008⅓ sq yd; 4 bigha 16 biswa = 1 acre. Former Patiala, Nabha and Malerkotla areas, Fazilka and Ropar.	9,075	843.1	Varies by district
Haryana
Kanal20 marla = 605 sq yd = 1/8 acre	5,445	505.86	Usual local value
Marla30.25 sq yd	272.25	25.293	Usual local value
Bigha (pucca)3,025 sq yd = 20 biswa of 151.25 sq yd. For example in Narnaul (Punjab & Haryana High Court, 2025).	27,225	2,529.29	Varies by district
Biswa (pucca)1/20 pucca bigha = 151.25 sq yd	1,361.25	126.46	Varies by district
Bigha (kachcha)⅓ pucca bigha = 1,008⅓ sq yd. Recorded for Ambala (1883) and Hisar.	9,075	843.1	Varies by district
Delhi
Bigha1,008⅓ sq yd; 4.8 bigha = 1 acre	9,075	843.1	Usual local value
Biswa1/20 bigha	453.75	42.155	Usual local value
Himachal Pradesh
Bigha0.2 acre = 20 biswa. Himachal laws quoted by the High Court (2025) treat 2½ acres as 12 bigha 10 biswa.	8,712	809.37	Usual local value
Biswa1/20 bigha = 20 biswansi	435.6	40.469	Usual local value
Biswansi1/20 biswa	21.78	2.0234	Usual local value
Uttarakhand
Nali240 sq yd; about 50 nali = 1 hectare. Figures of 2,025 to 2,250 sq ft are also quoted for parts of Garhwal.	2,160	200.67	Varies by district
Bigha (hills)756.25 sq yd (¼ pucca bigha)	6,806.25	632.32	Varies by district
Bigha (plains)1,936 sq yd = 0.4 acre	17,424	1,618.74	Varies by district
Assam
Bigha5 katha = 1,600 sq yd	14,400	1,337.8	Usual local value
Katha20 lessa = 320 sq yd	2,880	267.56	Usual local value
Lessa12 ft × 12 ft	144	13.378	Usual local value
Jharkhand
Katha (Ranchi)720 sq ft = 80 sq yd. Other districts use much larger kathas.	720	66.89	Varies by district

These states have no local unit of their own in the converter; it gives them the standard units and the Indian units with one value: Maharashtra (guntha, are); Madhya Pradesh; Odisha (decimal); Chhattisgarh (decimal); Tamil Nadu (ground, cent, are); Kerala (cent, are); Karnataka (guntha, cent); Andhra Pradesh (ankanam, cent, guntha); Telangana (guntha, ankanam, cent).

Units left out on purpose

Where no reliable value could be found, the converter leaves the unit out rather than show a precise-looking guess.

Gujarat: Not listed: the vasa (a part of the vigha), because sources disagree on whether a vigha has 16 or 20 vasa, and the 22, 24 or 25 guntha vigha sometimes quoted for parts of South and Central Gujarat, for which no reliable source was found.
Rajasthan: No official Rajasthan conversion table was found; a 1924 settlement report counted about forty different bighas in Jaipur State alone.
Maharashtra: Bigha is not a record unit in Maharashtra; if a seller quotes one, ask for the area in guntha or hectare-are.
Madhya Pradesh: Not listed: the bigha. Figures of 12,000 sq ft and 27,225 sq ft are both quoted for Madhya Pradesh, but no official source confirms either. Ask for the area in hectares from the khasra or B-1 record.
Uttar Pradesh: The kachcha bigha is not listed as a unit because it is a third of the pucca bigha in some places and a quarter in others. Khatauni records give area in hectares.
West Bengal: North Bengal (for example Jalpaiguri and Cooch Behar) is said to use different values; they could not be confirmed, so the South Bengal values are used.
Punjab: Other local marlas are not listed: about 206.6 sq ft (Hoshiarpur, Jalandhar) and 182.25 sq ft (Kapurthala), and a 3,025 sq yd bigha in Ludhiana.
Himachal Pradesh: A 900 sq yd (8,100 sq ft) bigha is sometimes quoted online; no official source supports it.
Assam: Values in the Barak Valley could not be confirmed.
Odisha: A local guntha is sometimes quoted for Odisha; its value could not be confirmed, so only the standard guntha (1/40 acre) is offered.
Chhattisgarh: Not listed: the bigha, for which no reliable Chhattisgarh value was found.

Each regional value comes from a revenue glossary, a land records manual, a court judgment or a state gazetteer, checked against a second source. The Farbe Spaces area converter shows the sources state by state.

How the converter works

Every unit is stored as square metres. The foot, yard and acre use their exact legal definitions (1 ft = 0.3048 m, 1 acre = 43,560 sq ft) and the metric units are defined by the SI.
Every conversion goes through square metres. Your figure is turned into square metres and then into each other unit, so results agree in every direction: convert back and you get the number you started with.
Local units follow your region. Bigha, katha, kanal and the other local units use the value for the region you pick, and the result is marked approximate where that value varies by district.
Rounding happens only at the end. Results keep about five significant figures and use Indian digit grouping (1,00,000), so 1 acre shows as exactly 43,560 sq ft rather than a long decimal.

Conversions are for planning and comparison. They do not replace the area written in title documents, land records or a survey. For a purchase, lease or registration, go by the official record and confirm local units with the revenue office (talati, patwari or tehsil).

Carpet, built-up and super built-up area

A converter changes the unit, not what was measured. Carpet area is the usable floor inside the walls, and it is what RERA uses for apartments. Built-up area adds the walls and balconies, and super built-up area adds a share of lobbies, stairs and other common areas. A 10,000 sq ft super built-up office can have noticeably less carpet area, so always compare carpet with carpet and plot area with plot area.

Frequently asked questions

How do I convert square feet to square metres?

Multiply square feet by 0.09290304, or divide by 10.764. For example, 5,000 sq ft × 0.09290304 = 464.52 sq m. To go the other way, multiply square metres by 10.764.

How many square feet are in 1 acre?

Exactly 43,560 square feet. One acre is also 4,840 square yards, 40 guntha and about 4,046.86 square metres, and it has the same value everywhere.

How many acres are in a hectare?

One hectare is 2.4711 acres, and one acre is 0.4047 hectare. A hectare is 10,000 square metres, or 100 are, which is how many land records write it.

How many square metres is a 10,000 sq ft warehouse?

929.03 square metres, which is about 0.2296 acre of floor. The land around a warehouse is usually larger, so check whether a figure is the floor area or the plot area.

How many square feet are in a guntha?

1,089 square feet (121 square yards, about 101.17 square metres). There are 40 guntha in an acre, and this guntha is used in the land records of Gujarat, Maharashtra, Karnataka, Telangana and Andhra Pradesh.

Is a bigha the same everywhere in India?

No. Among the states in this converter, a bigha ranges from about 6,806 sq ft (Uttarakhand) to about 27,225 sq ft (Rajasthan, Uttar Pradesh, Bihar, Haryana), and several states use more than one bigha, such as a pucca and a kachcha bigha. Pick your state in the converter, and check the land record or the local revenue office before you rely on a figure.

How many square feet is a vigha in Gujarat?

In Saurashtra and most Gujarat conversion tables, 1 vigha is 16 guntha, which is 17,424 sq ft or 0.4 acre. In areas of the former Baroda State a vigha is larger, about 25,623.53 sq ft (1.7 vigha to the acre), and that value varies.

Can I use these figures for a sale deed or a land record?

Use them to understand and compare areas. For a sale deed, lease or registration, the area written in the title documents and land records is what counts, and local units should be confirmed with the revenue office.

Is the area converter free? Is what I type stored?

It is free and needs no sign-up. The conversion runs in your browser: the numbers you type are not sent to Farbe. Your recent conversions are kept only in your own browser, and the page counts anonymously which units are used, without cookies.

Sources for the regional values

Standard units: NIST Handbook 44, Appendix C and the SI Brochure. Regional land units:

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