Why the Land You're Buying Measures Smaller Than the Deed Says
The deed says 10 shotok. You measure 8.6. Before assuming anyone is lying, here are the five reasons that gap appears — and how big a gap should actually worry you.
The deed says 10 shotok. You measure it and get 8.6.
Somebody is wrong, and it might not be the seller. Here are the five reasons a plot measures smaller than the paperwork claims, in the order you should check them.
Do this before you pay anything: measure the plot yourself, convert it into the same unit the deed uses, and compare. A gap of a few percent is normal. A gap of twenty percent is a conversation.
1. The units do not mean what you think
This is the most common cause, and the easiest to miss, because both sides are using the same word.
Katha is 720 sq ft in Bangladesh and West Bengal. In Bihar it is around 1,361 — nearly double. Bigha varies even more across Uttar Pradesh, sometimes by a factor of four between districts. Kani shifts between Bangladeshi districts too.
If a document was written in one region and is being read in another, the number stays the same while the meaning changes completely.
Check first: which local definition the deed was written under. Then convert both figures into square feet, which mean the same thing everywhere, and compare those instead.
2. You are comparing different things
Land documents often record more than one figure, and they do not all measure the same area.
- The total plot in an old record, before it was divided between heirs
- The share belonging to the person selling, which may be a fraction of that total
- The area minus a road or path that was cut through later
Someone inheriting a quarter share of 40 shotok is selling 10 shotok, but the paper in their hand may still say 40. That is not always dishonest. It is a different number answering a different question.
3. The record is old and the ground has moved
Survey records were made at particular moments. Between then and now:
- A road, drain or embankment was built through part of it
- A river shifted, taking or adding land
- A neighbour's wall crept across at some point and nobody argued
- The land was divided informally within a family and never re-recorded
The document describes what was true when it was written. Your measurement describes what is true now. Both can be accurate.
4. Your own measurement is off
Before you blame anyone, check your own working.
- You assumed a rectangle. If the corners are not square, length × width overstates the area. Measure both diagonals — on a true rectangle they match.
- You used GPS walking. Phone GPS drifts by metres, which is a lot on a small plot.
- You marked the wrong boundary. A wall, a ditch and the legal line are three different things and often not in the same place.
- You converted with the wrong figure. Dividing by 720 when the region works to a different katha gives a confident wrong answer.
Measure again, by a different method, before raising it with anyone.
5. The claim was simply inflated
It happens. A plot described as "about 10 shotok" that measures 8.6 may have been rounded up kindly, priced per shotok on a number nobody checked.
This is why measuring before the price discussion matters, rather than after. Once a figure has been spoken aloud it becomes the anchor for everything that follows.
How big a gap is too big?
| Difference | What it usually means | What to do |
|---|---|---|
| Under 5% | Normal, just how measuring works | Nothing |
| 5–10% | Where you put the boundary, or your method | Measure again differently |
| 10–25% | Share, road cut, or an old record | Ask what the figure refers to |
| Over 25% | Unit mismatch or a serious error | Stop. Get a surveyor before going further |
The order to do this in
- Measure it yourself before you talk about price. Mark the corners on a satellite map, or measure with a tape if it is a clean rectangle.
- Convert to square feet. Not katha, not shotok — square feet mean the same everywhere.
- Convert the deed figure to square feet too, using the definition local to where it was written.
- Compare. Use the table above to judge the gap.
- Ask what the number refers to if there is a real difference — total plot, share, or before a road was cut.
- Bring a licensed surveyor before money changes hands, always, whatever your phone said.
Doing steps 1 and 2 on your phone
Area and Plot Measurement covers the screening part. Tap the corners of the plot on a satellite map. It gives you the area in katha, bigha, shotok, acre and square feet at once. So you can compare against whatever unit the paperwork uses, with no arithmetic.
Save each plot with a name and notes. Then put several side by side, and decide which one is worth a surveyor's time.
It is Android only, and it is a screening tool. It will tell you whether a claim is roughly honest. It will not settle a boundary dispute, and nothing that goes on a document should come from a phone.
The short version
Measure before you discuss price. Convert everything to square feet. A small gap is normal; a large one usually means the units differ or the figure refers to something else. Get a surveyor before you pay.
More on the numbers in the land unit conversion guide. More on getting a figure at all in how to measure land without a surveyor.
Frequently asked questions
Why does my land measure less than the deed says?
Most often the units differ between regions, or the deed figure refers to something else — the whole plot rather than the share being sold, or the area before a road was cut through. It can also be an error in your own measurement, or simply an inflated claim.
How much difference is normal?
Under about five percent is normal measurement variation. Five to ten percent usually comes from boundary interpretation or your method. Anything over twenty-five percent generally means a unit mismatch or a serious error, and you should stop and get a surveyor.
Does katha mean the same thing everywhere?
No. Katha is 720 square feet in Bangladesh and West Bengal, but around 1,361 in Bihar. Bigha varies even more widely across Uttar Pradesh, and kani differs between Bangladeshi districts. Convert both figures to square feet before comparing them.
Should I measure before or after discussing the price?
Before, always. Once an area figure has been stated it anchors the whole negotiation, and correcting it afterwards is much harder than establishing it correctly at the start.
Can a phone app settle a boundary dispute?
No. A phone measurement tells you whether a claim is roughly honest, which is enough to screen plots. Anything legal, final, or disputed needs a licensed surveyor and the mouza map.