How many square feet in one bigha?

It depends on the state — a UP bigha is about 27,225 square feet, a West Bengal bigha about 14,400. Pick the specific variant in the unit list rather than assuming a single figure exists.

How many gunta in an acre?

Exactly 40. One gunta is 1,089 square feet, and it is the standard sub-division of an acre across Maharashtra and Karnataka.

What is a cent in land measurement?

One-hundredth of an acre, or about 435.6 square feet. It is the common unit across Tamil Nadu, Kerala and parts of Andhra Pradesh and Karnataka.

How many marla in a kanal?

Twenty. A kanal is about 5,445 square feet and a marla about 272 — both standard in Punjab, Haryana and Himachal Pradesh.

Are these conversions legally binding?

No. Regional land units vary by state and sometimes by district, and the authority is your local revenue record. Use these for comparison and estimation, not for documentation.

Why is a kilobyte 1024 bytes and not 1000?

Because memory is addressed in powers of two. Storage manufacturers use 1000, which is why a 1 TB drive shows as roughly 931 GB. This converter uses the 1024 convention throughout.

Unit Converter — Including Indian Land Measures

One value converted into every unit in the group at once, with bigha, katha, gunta, cent, ground, kanal and marla alongside the metric and imperial units.

Runs in your browser — nothing is uploaded

What are you converting?

Measurement

Value

From

Regional units vary by district

A bigha in Uttar Pradesh is not a bigha in West Bengal, and both differ from Rajasthan's. The values here are the commonly cited state conversions — for anything going into a sale deed, the local revenue record is the authority.

1 Acre converts to

Every unit in this group at once — no need to run it again for the next one.

Square metre4,046.856422
Square foot43,560
Square yard (gaj)4,840
Square kilometre0.004047
Hectare0.404686
Bigha (UP / Uttarakhand)India1.6
Bigha (West Bengal)India3.025002
Bigha (Rajasthan, pucca)India1.6
Katha (Bihar)India32.016269
Gunta / GunthaIndia40.000162
Cent (south India)India99.999912
Ground (Chennai)India18.150024
Kanal (Punjab / Haryana)India8.000001
Marla (Punjab / Haryana)India159.999068

Download the full conversion table, including the factor each unit uses.

Unit	Symbol	Converted value	In m2
Square metre	m2	4,046.856422	1
Square foot	ft2	43,560	0.09290304
Square yard (gaj)	yd2	4,840	0.83612736
Square kilometre	km2	0.004047	10,00,000
Hectare	ha	0.404686	10,000
Acre	acre	1	4,046.8564224
Bigha (UP / Uttarakhand)	bigha-up	1.6	2,529.285
Bigha (West Bengal)	bigha-wb	3.025002	1,337.803
Bigha (Rajasthan, pucca)	bigha-raj	1.6	2,529.285
Katha (Bihar)	katha	32.016269	126.4
Gunta / Guntha	gunta	40.000162	101.171
Cent (south India)	cent	99.999912	40.4686
Ground (Chennai)	ground	18.150024	222.967
Kanal (Punjab / Haryana)	kanal	8.000001	505.857
Marla (Punjab / Haryana)	marla	159.999068	25.293

Why use it

Built to be genuinely useful

Indian land units

Bigha, katha, gunta, cent, ground, kanal and marla — how land is actually described, and absent from every international converter.

Everything at once

Convert once and read all the units. No running it again for the next one.

Temperature done properly

Celsius, Fahrenheit and Kelvin need offsets, not ratios. Most quick converters get the edge cases wrong.

Exportable table

Download the full conversion table with the factor each unit uses.

How it works

Three steps

1
Pick what you are measuring — length, area and land, weight, volume, data or temperature.
2
Enter the value and the unit it is in.
3
Read every other unit in the group, or download the table.

Land in India is not measured in acres

It is measured in bigha in the north, katha in Bihar and Bengal, gunta across Maharashtra and Karnataka, cent in Tamil Nadu and Kerala, ground in Chennai, and kanal and marla in Punjab and Haryana. Property listings, revenue records and conversations at the site all use them.

No international unit converter carries any of these, which means the one conversion an Indian buyer genuinely cannot do in their head is the one no tool helps with. They are included here alongside square feet, square yards, acres and hectares, so a plot described in gunta can be read in the units a bank or a builder will use.

The important caveat: a bigha is not a fixed quantity. Uttar Pradesh, West Bengal, Bihar, Rajasthan and Assam all use different values, and within states there are pucca and kachcha variants that differ again. The values here are the commonly cited state conversions, and they are labelled as such. For anything going into a sale deed, the local revenue record is the authority and nothing on the internet substitutes for it.

Why converting to everything at once is the right default

Somebody converting a plot size rarely wants one answer. They want square feet for the builder, square yards for the listing, acres for the loan application and gunta because that is what the seller said. Running the same conversion four times is four times the work for no reason.

Every unit in the group is shown from a single input. The table view adds the conversion factor each unit uses, which is worth having when you need to show your working to somebody who will check it.

Temperature is the one that is not a ratio

Every other conversion here is a multiplication: a kilometre is a thousand metres, always. Temperature scales have different zero points as well as different step sizes, so converting needs an offset applied before the scaling and another after it.

This is why quick conversion tables built on ratios alone produce nonsense at the extremes — and why −40 being the same number in Celsius and Fahrenheit surprises people. It is the one point where the two scales cross.

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