Dismil to Hectare Calculator
One dismil is a hundredth of an acre — about 40 square metres. Enter any figure from your land record to see it in hectares.
Dismil to Hectare Formula
Hectare = Dismil × 0.004047. Or: Hectare = Dismil ÷ 247.105. Reverse: Dismil = Hectare × 247.105.
A 30 dismil plot works out to 30 × 0.004047 = 0.1214 hectare. Useful landmarks: 100 dismil is exactly 1 acre, and about 247 dismil makes 1 hectare.
Dismil to Hectare – Quick Reference Table
Common conversion values for quick reference
| Dismil | Hectare | Square Meter | Square Feet |
|---|---|---|---|
| 1 Dismil | 0.004047 | 40.47 | 436 |
| 5 Dismil | 0.020235 | 202.35 | 2,178 |
| 10 Dismil | 0.040470 | 404.70 | 4,356 |
| 25 Dismil | 0.101175 | 1,011.75 | 10,890 |
| 50 Dismil | 0.202350 | 2,023.50 | 21,780 |
| 100 Dismil | 0.404700 | 4,047.00 | 43,560 |
| 247 Dismil | 0.999609 | 9,996.09 | 107,593 |
| 500 Dismil | 2.023500 | 20,235.00 | 217,800 |
| 1000 Dismil | 4.047000 | 40,470.00 | 435,600 |
What a dismil actually is
A dismil is one hundredth of an acre. That is the whole definition, and it is why the number 100 shows up so often: 100 dismil makes exactly one acre, and a little over 247 makes one hectare.
The unit survives because it is a comfortable size for the plots people actually buy and sell in eastern India. One dismil is about 40 square metres — roughly a small room and its veranda. Quoting a homestead plot as "8 dismil" is easier than saying 0.032 hectare.
Why you end up converting it
Older paper records and everyday conversation use dismil. Government systems increasingly store area in hectares, because that is the standard unit for revenue and survey data. So the same plot can appear as two different numbers in two different places, and neither one is wrong.
This comes up most often when you are reading a digitised record for a plot you have always known in dismil, comparing a sale deed against an online extract, or filling a form that asks for hectares when your papers are in dismil.
Doing the conversion by hand
Divide by 247.105, or multiply by 0.004047 — the same operation either way. A quick sanity check that needs no calculator: a quarter acre is 25 dismil, and a quarter acre is roughly a tenth of a hectare. If your answer is nowhere near that shape, something has gone wrong.
Where you will see dismil used
- Bihar — land records list plot area in dismil, spelled that way
- Jharkhand — both spellings appear, often in the same office
- West Bengal — usually written as decimal, same unit
One thing worth being careful about
Rounding. This calculator carries the factor to six places, but a record that rounded to 0.004 early on will drift from the exact figure as the area grows. On a large holding that gap can reach several hundred square feet. When the number matters legally, the figure on your own document is the one that counts.
Related calculators
- Hectare to Dismil — the reverse direction
- Decimal to Hectare — same unit, West Bengal spelling
- Acre to Hectare — useful since 100 dismil = 1 acre