✱ LAND MEASUREMENT

Cent to square feet

One cent is 435.56 square feet. A cent is one hundredth of an acre, and it is the unit land is quoted in across Udupi, Mangalore and the rest of coastal Karnataka. Type any number below and it converts to every other unit used here.

Rounded to two decimals. For a registered sale, use the figure in the survey sketch and the deed, not a converted approximation.

✱ QUICK REFERENCE

The conversions people actually need

These are the numbers that come up in a normal conversation about land in Udupi or Mangalore.

  1. 01

    1 cent = 435.56 square feet

    The base unit here. One hundredth of an acre. Land in the coastal belt is priced per cent, so a rate of 10 lakh per cent means 10 lakh for every 435.56 square feet.

  2. 02

    1 guntha = 1,089 square feet = about 2.5 cents

    Guntha is used more in interior Karnataka. If a seller quotes gunthas for land in Udupi, the parcel is probably still on an agricultural revenue record.

  3. 03

    1 acre = 100 cents = 40 gunthas = 43,560 square feet

    Agricultural land is recorded in acres and gunthas on the RTC. A layout carved out of it will then be sold in cents.

  4. 04

    30 by 40 site = 1,200 square feet = about 2.75 cents

    The most common small site dimension. A 40 by 60 is 2,400 square feet, about 5.51 cents.

  5. 05

    1 cent = about 40.47 square metres

    Square metres appear on planning and building documents. Useful to know because the K-RERA registration threshold is set at 500 square metres of project land.

  6. 06

    Site and plot mean the same thing

    Locally, site means a residential plot. There is no difference between the two words in Udupi and Mangalore.

✱ BEFORE YOU TRUST A NUMBER

Where land area goes wrong

A converter answers arithmetic. It does not tell you whether the area being quoted is the area you are actually buying, and that gap is where money is lost.

  1. 01

    The deed and the ground disagree

    The area in the sale deed, the area on the RTC and the area you get when the boundary is actually measured are often three slightly different numbers. Have it surveyed against the sketch before you pay, not after.

  2. 02

    Road and setback area counted in

    In some layouts the quoted extent includes a share of the access road or land you cannot build on. Ask what the buildable area is, separately from the total extent.

  3. 03

    Built up, super built up and carpet area

    For flats, the price is usually quoted on super built up area while you live in the carpet area. They are not the same number and the difference can be substantial.

  4. 04

    Guidance value is set per unit too

    Stamp duty is charged on the higher of your sale value or the government guidance value for that area. Since both are computed on extent, an area error also changes what you pay in duty.

If you want the extent on a specific property checked against the survey sketch and the revenue record, send us the survey number. Checked 6 September 2026.

✱ QUESTIONS

Land measurement questions

How many square feet is 1 cent?

One cent is 435.56 square feet. It is one hundredth of an acre. This is the unit land is normally quoted in across Udupi, Mangalore and the rest of coastal Karnataka.

How many cents is one guntha?

One guntha is 1,089 square feet, which is about 2.5 cents. Guntha is used more in the interior of Karnataka, while the coastal districts quote in cents.

How many cents is a 30 by 40 site?

A 30 by 40 site is 1,200 square feet, which is about 2.75 cents. A 40 by 60 site is 2,400 square feet, about 5.51 cents.

How many cents are in an acre?

One hundred cents make an acre. An acre is 43,560 square feet, and 40 gunthas.

Is a site the same as a plot in Udupi?

Yes. Locally the word site means a residential plot. The two words mean the same thing and are used interchangeably in Udupi and Mangalore.

Why does the same land measure differently on different documents?

Revenue records for agricultural land are usually written in acres and gunthas, while a layout or a sale is quoted in cents or square feet. The area can also differ between the sale deed, the RTC and the actual survey on the ground. Before buying, have the boundaries measured against the survey sketch rather than relying on the figure in the advertisement.

Checking a specific property?

Send us the survey number and we will tell you the recorded extent, the land use and what the guidance value looks like for that area.

3rd Floor, Sriram Building, Bannanje, Udupi 576101, Karnataka
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