How this calculation works
Apply each supplied fraction to the same whole parcel. Sum fractions exactly, reject over-allocation and show any remainder explicitly. Area equivalents do not identify where a share lies on the ground or decide who is entitled to it.
Area for an entered fraction p/q = total parcel area × p / qA worked example
For 2 acres, supplied shares 1/2, 1/4 and 1/4 correspond to 1 acre, 0.5 acre and 0.5 acre. They represent all 87,120 sq ft. Three exact 1/3 fractions also represent the whole parcel.
Good to know
Only the fractions entered by you are used. No inheritance law, heir eligibility, title verification, physical partition, value equalization or legal entitlement is inferred. A joint or undivided share is not a surveyed separate plot.
Reference: NIST: exact international-foot and acre factors (opens in a new tab) ↗
Check the land-unit definitions and sources
The standard factors use the international foot and an acre of 43,560 sq ft. Cent means 1/100 acre; gunta means 1/40 acre; the selected Chennai ground means 2,400 sq ft.
The Assam report defines bigha as 14,400 sq ft, katha as 2,880 sq ft and lecha as 144 sq ft. The cited West Bengal court order mentions a 720-sq-ft katha convention. These are explicit presets, not an automatic definition for every record or every place using the same name. Match your record to the stated convention, or use its verified custom factor.
- NIST: exact international-foot and acre factors (opens in a new tab) ↗
- API Setu MDDS: acre/cent and acre/gunta relationships (opens in a new tab) ↗
- Greater Chennai Corporation: one ground is 2,400 sq ft (opens in a new tab) ↗
- Government of Assam AIRBMP framework: section 7.2, page 28 (bigha, katha and lecha) (opens in a new tab) ↗
- Supreme Court order, 7 May 2025: paragraph 2, page 2 (West Bengal katha) (opens in a new tab) ↗
The acre relationships are converted using exact base factors. Rounded or unrelated regional values in a reference table are not substituted for these definitions.
Supply fractions before asking for their area equivalents
A half share in a two-acre parcel corresponds arithmetically to one acre. That statement does not decide which half of the ground belongs to someone. A physical partition needs a boundary arrangement and can be affected by matters that this calculation does not model.
Enter each fraction of the same whole parcel, such as 1/2, 1/4 and 1/4. Do not enter the second quarter as a quarter of the remaining half unless that is actually the intended entitlement; fractions of different bases cannot be added as though they share one denominator.
Fraction arithmetic is exact here. Three entries of 1/3 total one, while three decimal entries of 0.333333 total 0.999999 and leave a small remainder. The difference comes from the entered fractions, not an invented rounding adjustment.
An omitted share remains unallocated
If you enter 1/2 and 1/4, the remaining 1/4 is shown explicitly. The tool does not distribute it among the entries or assign it to an unnamed person. A total above one is rejected instead of silently normalizing everyone’s entry.
For three supplied equal fractions of one acre, each area equivalent is 14,520 sq ft. The boundary lengths of a suitable subdivision do not follow from that number. Access, frontage, shape and retained common areas can all matter in an actual division.
The mixed land extent calculator can help first when the whole parcel is written in acres plus guntas or cents. This page then uses the resulting quantity and the fractions you provide. It does not calculate inheritance shares under any personal or succession law.
A few questions, answered
Can I use percentages?
Convert an entered percentage to a fraction of one, such as 25/100 or 0.25. Do not enter 25 for a 25% share.
Does it determine heirs or legal shares?
No. The fractions are inputs. The tool does not model family trees, succession law, ownership validity or legal entitlements.
Must all shares total one?
No. A smaller total is allowed and its remainder is displayed. A total greater than one is not allowed.