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Land Area Unit Converter & Plot Calculator

Accurate Land Unit Conversion (Decimal, Satak, Katha, Bigha, Acre, Sq Ft) with Indian State Presets, Geometry Calculators, Share Distribution & Valuation.

100% In-Browser Local Calculation & Privacy
All land measurements, partnership shares, and plot coordinates execute locally in your browser memory. Zero records are stored on our servers.
Client-Side Math Engine
Step 1 — Select Indian State Preset (আঞ্চলিক মান নির্বাচন)
Step 2 — Enter Land Quantity (জমির পরিমাণ লিখুন)
Live Universal Conversion Results
Select Plot Shape (জমির নকশা নির্বাচন)
For 4-sided irregular plots, average dimensions (Average Length × Average Width) are computed.
Accurate calculation for triangular land using Heron's Formula: $\sqrt{s(s-a)(s-b)(s-c)}$.
Calculated Plot Area & Equivalents:
Land Share & Heir Distribution (অংশীদারী বণ্টন)
Partner Name (অংশীদারের নাম) Share (%) Entitlement (Decimal / শতক) Area (Sq. Feet) Katha / Bigha Remove
Total Distributed Share: 100%
Land Price & Valuation Calculator (জমির বাজারদর)
Total Estimated Land Cost
₹ 5,00,000
Five Lakh Rupees Only
Average Cost per Sq. Ft.
₹ 114.78 / sq.ft.
Stamp duty & registration charges subject to state circle rates
Saved Calculations & Measurement Memos
Date & Time Module / Type Input Details Conversion / Summary Action

Rakib Star Enterprise

Land Area Measurement & Calculation Slip (জমির পরিমাপ মেমো)
Digital Seva & Customer Facilitation Desk • https://rakibstarenterprise.in
Date: 24/09/2026
State Preset: West Bengal Standard
Input Measurement: 10 Decimal
Unit (একক) Value (পরিমাপ) Unit (একক) Value (পরিমাপ)
* Statutory Notice: This measurement slip is generated for estimation and calculation assistance. Legal deeds, khatians, and boundary demarcations remain governed by the respective State Revenue Department and licensed government surveyors.
___________________________
Operator / Surveyor Signature
___________________________
Customer / Landowner Signature
Mandatory Land Survey Disclaimer & Compliance Notice

This tool is intended for estimation and unit conversion assistance only. Bigha, Katha/Cottah, Biswa, and Dhur conversion ratios vary by region and state. Official land records, deeds, khatians, and mouza surveys must be verified through the respective State Land & Land Reforms Revenue Department.

Security Notice: All calculations are processed locally. Rakib Star Enterprise does not claim responsibility for demarcation disputes.

Land Area Measurement & Unit Guide

1 Decimal / Satak
435.6 Square Feet

1 Decimal = 1 Satak = 40.4686 Sq. Meters = 1000 Sq. Links (Gunter Chain).

1 Acre
100 Decimal / Satak

1 Acre = 43,560 Sq. Feet = 4,046.86 Sq. Meters = 3 Bigha 8 Chhataks (WB).

1 Bigha (WB)
20 Katha / 14,400 Sq. Ft.

In West Bengal, 1 Bigha = 33.0578 Decimal = 1,337.8 Sq. Meters = 160 Chhataks.

1 Hectare
10,000 Sq. Meters (m²)

1 Hectare = 2.47105 Acres = 247.105 Decimals = 107,639 Sq. Feet.

Frequently Asked Questions (FAQ)

No. Across West Bengal and eastern India, Decimal and Satak (শতক) represent the identical land unit. 1 Decimal = 1 Satak = 435.6 Square Feet = 40.4686 Square Meters.

Bigha is a customary regional land unit. In West Bengal, Assam, and Tripura, standard 1 Bigha is defined as 14,400 sq. ft. (~33.06 Decimal). In Bihar and Uttar Pradesh, Pucca Bigha is standard at 27,225 sq. ft. (~62.5 Decimal). Always select the appropriate State Preset in this tool.

Measure all 3 sides of the triangle and enter them in Tab 2 under "Triangle 3 Sides (Heron's Formula)". The calculator uses $\sqrt{s(s-a)(s-b)(s-c)}$ to compute 100% geometrically accurate land area in Decimals, Sq. Ft., and Kathas.
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