How to Calculate Dismil to Square Feet (Sq Ft) - 2025-2026 Popular Converter

Summary

 

• Fixed Conversion Rate: One Dismil is exactly equivalent to 435.6 Square Feet (1 Dismil = 435.6 Sq Ft).

• Regional Usage: Dismil is a key land measurement unit in Eastern Indian states, including Bihar, Jharkhand, Odisha, and West Bengal.

• Legal Standardization: This conversion is recognized and used in official government documents such as Record of Rights (ROR), mutation records, and during property sales for calculating plot area.

• Digital Integration: The standardized rate is integrated into digital land portals (Bhoomi, Dharani, BhuNaksha) for generating accurate records.

• Conversion Formula: To find the area in Square Feet, multiply the Dismil value by 435.6 (e.g., 10 Dismil = 10 X 435.6 = 4,356 Sq Ft).

• Consistency: The conversion factor remains constant (435.6 Sq Ft) across all states where the unit is officially applied.

• Interchangeability: Dismil is numerically equal to the unit Cent (Dismil = 1 Cent).

• Final Legal Unit: Square Feet is the final, legally mandated unit for property registration, stamp duty calculation, and municipal planning across India.

• Larger Equivalents: Dismil is 0.01 Acre and approximately 0.004 Hectare.

Overview

1 Dismil is Exactly Equivalent to 435.6 square feet.  { 1 dismil = 435.6 Square Feet }

Dismil is a regional land measurement unit primarily used in Eastern India. It is widely applied in real estate transactions and government land records. Converting dismil into more universally understood units, such as square feet (sq ft), is essential for accurate valuation, planning, and legal documentation of land.

This article provides a precise guide to converting dismil to square feet. It also explains where and how the unit is used across Indian states, including Bihar, Jharkhand, Odisha, and West Bengal. Readers will find exact conversion formulas, regional variations, calculator references, and detailed conversion tables for practical use.

Key Facts:

• 1 Dismil = 435.6 Square Feet (Sq Ft)

• Standardized value used in most Indian states

• Used in land registry, plot size verification, and property deals

What is Dismil?

Dismil is a non-SI regional unit of land measurement commonly used in Eastern India. It is predominantly applied in the states of Jharkhand, Odisha, Bihar, Assam, and West Bengal for measuring small to medium-sized land parcels. Dismil is especially relevant in rural and semi-urban property records.

By definition, 1 dismil equals 435.6 square feet (sq ft). The unit is recognized by multiple state revenue departments for land registration and is used in official survey records and title deeds.

Attributes of Dismil:

• Root Type: Area measurement unit

• Scale: Smaller than Acre or Hectare

• Usage: Local cadastral mapping, registry records, property sales

• Standard Conversion: 1 Dismil = 435.6 sq ft

Regional Context: Dismil is often used interchangeably with "Decimal" in regional language, although both refer to the same unit (1 Decimal = 1 Dismil). It simplifies communication between landowners, surveyors, and government officials during transactions and demarcation.

 

How to Convert Dismil to Square Feet?

Dismil can be converted into square feet using the fixed conversion factor recognized across most Indian states.

Conversion Formula:
1 Dismil = 435.6 Square Feet

To convert any value of dismil into square feet, multiply the dismil value by 435.6.

Formula:
Square Feet = Dismil × 435.6

Example Conversions:

• 5 dismil = 5 × 435.6 = 2,178 sq ft

• 10 dismil = 10 × 435.6 = 4,356 sq ft

• 50 dismil = 50 × 435.6 = 21,780 sq ft

Use Case:  This conversion is crucial for calculating total plot area in housing layouts, real estate transactions, and municipal zoning records. Builders, landowners, and legal officials frequently use this conversion when translating older regional documents into modern cadastral systems based on square feet.

Tools:  Online land area calculators and digital property portals integrate square-feet-to-square-mile conversions for user convenience. These tools eliminate manual calculation and provide instant outputs during online registration or mutation applications.

Is the Dismil to Square Feet Value the Same Across Indian States?

Yes, 1 dismil is equivalent to 435.6 square feet (sq ft) across all Indian states that officially use this unit in their land measurement systems. This fixed conversion factor is recognized by revenue departments, land registry offices, and municipal authorities to ensure consistency in area calculation, title deeds, and legal documentation.

Regional Applications:

• Jharkhand: Dismil is one of the primary land units in government mutation records and survey reports. The state officially uses 1 dismil = 435.6 sq ft in revenue documents and property transfers.

• Bihar: The term "decimal" is used interchangeably with dismil. All district-level land offices apply the standard value of 435.6 sq ft per dismil in landholding certificates and transaction summaries.

• Odisha (including Bhubaneswar): In both rural and urban zones, dismil is used in digitized land record portals and layout plans. Housing boards and municipalities apply the standard value without variation.

• Assam: Dismil is used in land partitioning, mutation, and local cadastral maps. Government land applications and Patta issuance reference the conversion factor of 435.6 sq ft per dismil.

• West Bengal: Though katha and bigha are also prevalent, dismil remains a standard unit in state revenue systems. The conversion to square feet aligns with the national standard.

• Chhattisgarh: Recognized under the state's Bhumi Abhilekh (land records) system, dismil is used for calculating agricultural land area. All local Tehsils follow the 435.6 sq ft standard.

• Uttar Pradesh: Dismil is recognized in land mutation forms, especially in Eastern UP. The fixed square feet equivalent supports landholding validation and registry updates.

• Tripura: Survey maps and rural land ownership titles in Tripura incorporate dismil-based measurements. The same conversion ratio of 435.6 sq ft is used across official systems.

• Telangana: Though less common than other units like guntas or acres, dismil still appears in older records. Wherever applied, the conversion follows the same 435.6 sq ft value.

Note: While dismil and decimal are often used synonymously, their conversion to square feet does not vary. However, other units like bigha, katha, guntha, and marla may differ significantly across regions due to historical definitions.

Comparison of Dismil with Other Land Measurement Units

Dismil is one of many land measurement units used across India. Its fixed conversion to square feet makes it a preferred standard for clarity, especially in legal, registry, and government systems. However, several traditional units are still used in various regions, each with state-specific variations.

The following table presents a comparison of 1 dismil against other units based on regional standards:

Unit Name	Regional Use	Equivalent to 1 Dismil
Square Feet (Sq Ft)	Pan-India	435.6 sq ft
Katha	Bihar, Jharkhand, WB	~0.605 Katha (varies by state)
Bigha	Assam, UP, WB, Punjab	~0.0303 Bigha
Cent	Tamil Nadu, Kerala	1 Cent
Marla	Punjab, Haryana	~1.6 Marla
Guntha	Maharashtra, Telangana	0.4 Guntha
Acre	Pan-India	0.01 Acre
Hectare	Official/Registry Use	0.004 Hectare
Biswa	UP, Haryana	~0.3227 Biswa
Square Yard (Sq Yd)	Urban Plots	~48.4 sq yd
Square Inch (Sq In)	Calculation Contexts	~62,726.44 sq in
Square Centimeter (Sq Cm)	Academic Use	~404,686.03 sq cm

 

Observation:

• Units like Katha, Bigha, and Marla vary significantly between districts and states. They are less reliable for standard conversion without local calibration.

• Dismil and Cent are numerically equal (1 dismil = 1 cent = 435.6 sq ft), making them interchangeable in certain states like Odisha and Tamil Nadu.

• Dismil acts as a bridge unit between traditional and SI units, due to its fixed conversion rate and wide state-level acceptance.

Use Case Scenarios:

• Katha to Dismil: Used in West Bengal property mutation cases.

• Guntha to Dismil: Applied in Maharashtra plot allotments.

• Acre to Dismil: For large-scale land bank conversions in agricultural reports.

 

Applications of Dismil in Land Registrations

Dismil is an officially recognized unit in various state land registration systems across India. It is used to document property boundaries, calculate stamp duties, and record landholdings in digital land records and physical registry books.

Key Areas of Use:

• Mutation Records: Tehsil and Patwari offices across Eastern India use dismil for recording ownership transfers, especially in rural land parcels.

• Registry Documents: Sale deeds and land transfer agreements mention property area in dismil, which is then cross-verified with square feet for valuation and legal authentication.

• Digital Land Portals: Government platforms such as Bhoomi (Karnataka), Dharani (Telangana), and BhuNaksha (multiple states) support dismil entries during land searches and document generation.

• Stamp Duty Calculation: Since stamp duty depends on total land area, converting dismil into square feet is essential for determining applicable charges.

• Plot Subdivision and Survey Maps: Survey departments convert dismil to square feet to generate precise plot boundaries during layout mapping and village cadastral updates.

Regional Integration: In states like Odisha and Jharkhand, dismil is embedded in standard proformas used for Form 15, Form 21, and ROR (Record of Rights). These forms maintain dual entries — in dismil and square feet — to facilitate both traditional and modern referencing.

 

How Dismil-Based Calculators Improve Accuracy

Dismil-based calculators automate the conversion of land area from dismil to square feet with precision. These digital tools reduce human error in manual calculations and streamline area validation in official records, layout planning, and real estate documentation.

Core Benefits of Using Dismil Calculators:

• Accuracy in Unit Conversion: The calculators use the exact conversion factor (1 dismil = 435.6 sq ft), ensuring standardization across all outputs. This prevents rounding errors often seen in manual conversions.

• Faster Documentation: Real estate agents, surveyors, and registry officials use these tools to instantly calculate total plot area, improving efficiency in property transfer processes.

• Multi-Unit Integration: Most dismil calculators also convert values into other units like katha, cent, acre, and hectare. This supports cross-regional transactions and comparisons.

• Preloaded State-Specific Values: Some calculators offer region-specific presets (e.g., bigha in UP vs. bigha in WB), allowing users to input dismil values and receive parallel outputs across varying unit systems.

Practical Applications:

• Used in property tax estimation portals.

• Integrated in land parcel allocation tools by development authorities.

• Embedded in survey engineer mobile apps for real-time field calculations.

Recommended Tools:

• Government portals like BhuNaksha and Dharani.

• GIS-integrated land calculators used in town planning departments.

• Private platforms with verified unit databases (e.g., landarea.in, magicbricks converter).

Regional Variants and Misconceptions About Dismil

Despite its standardized definition, dismil is often misunderstood due to regional naming practices and overlapping usage with similar-sounding units such as decimal or cent. These misconceptions can lead to inaccuracies in land valuation and boundary disputes.

Common Misconceptions:

• Dismil vs. Decimal: In many Eastern Indian states, “decimal” and “dismil” are used interchangeably. While numerically equivalent (1 decimal = 1 dismil = 435.6 sq ft), the difference lies only in terminology, not in unit value.

• Cent Confusion: In Southern states like Tamil Nadu and Kerala, “cent” is the preferred unit. One cent is also 435.6 sq ft, leading some to assume it's a separate measurement. In reality, cent and dismil are identical in value but differ in regional usage.

• State-Specific Bigha Systems: Landowners often attempt to convert bigha to dismil using generalized assumptions. However, bigha varies widely by state — for example, 1 bigha in West Bengal ≈ 1,600 sq yd, whereas in Assam, it can exceed 2,500 sq yd. These cannot be directly linked to dismil without state-level calibration.

Administrative Clarification: Revenue departments across Jharkhand, Odisha, and Bihar have issued guidelines affirming the fixed conversion of dismil to square feet. These documents also clarify that while colloquial use may vary, registry offices accept only standard numerical values during documentation.

Impact on Land Buyers and Sellers:
Misinterpreting dismil can lead to:

• Overpayment or underpayment during land deals.

• Incorrect area calculations in building plans.

• Delays in registry due to mismatched unit interpretation.

Resolution: Government land portals, property advisors, and survey engineers recommend using certified calculators or official conversion charts to prevent unit-based discrepancies during transactions.

Why Square Feet Remains the Final Reference Unit in Registrations

Square feet (sq ft) is the most widely used and legally accepted unit of land measurement in India. While dismil, cent, katha, and bigha are used at the local or regional level, square feet is the final reference unit during legal land registrations, sale deeds, and municipal assessments.

Reasons for Standardization:

• National Uniformity: Square feet allows a consistent valuation of land parcels across states, regardless of local measurement customs.

• Digital Integration: All major e-governance platforms, including Bhoomi, Dharani, and BhuNaksha, operate using square feet as the base unit for area entries, boundary digitization, and record generation.

• Legal Precision: Property registration offices require land area to be submitted in square feet to calculate exact stamp duties, property taxes, and mutation charges.

• Engineering & Architecture Compliance: Building plans, layout approvals, and construction maps are all designed using square feet. This enables seamless communication between property owners, engineers, and regulatory authorities.

Registry Process Alignment: Even if the initial land description is provided in dismil or cent, registry offices convert the values into square feet before storing the information in official databases such as the Record of Rights (ROR) or Encumbrance Certificates (EC).

Government Mandate Example: In states like Karnataka, Maharashtra, and Telangana, the stamp duty computation modules embedded in Sub-Registrar Office (SRO) software systems are configured only for square feet input, further reinforcing its role as the final standard.

Summary Table – Dismil to Square Feet (1 to 200 Dismil)

The following table provides a direct conversion of land area values from dismil to square feet, using the standardized factor:

1 dismil = 435.6 square feet

This table supports survey engineers, landowners, registry officials, and real estate consultants in quickly converting multiple dismil values into square feet for documentation, layout planning, or valuation.
 

Dismil (dm)	Square Feet (sq ft)	Dismil (dm)	Square Feet (sq ft)
1	435.6	51	22215.6
2	871.2	52	22651.2
3	1306.8	53	23086.8
4	1742.4	54	23522.4
5	2178.0	55	23958.0
6	2613.6	56	24393.6
7	3049.2	57	24829.2
8	3484.8	58	25264.8
9	3920.4	59	25700.4
10	4356.0	60	26136.0
11	4791.6	61	26571.6
12	5227.2	62	27007.2
13	5662.8	63	27442.8
14	6098.4	64	27878.4
15	6534.0	65	28314.0
16	6969.6	66	28749.6
17	7405.2	67	29185.2
18	7840.8	68	29620.8
19	8276.4	69	30056.4
20	8712.0	70	30492.0
21	9147.6	71	30927.6
22	9583.2	72	31363.2
23	10018.8	73	31798.8
24	10454.4	74	32234.4
25	10890.0	75	32670.0
26	11325.6	76	33105.6
27	11761.2	77	33541.2
28	12196.8	78	33976.8
29	12632.4	79	34412.4
30	13068.0	80	34848.0
31	13503.6	81	35283.6
32	13939.2	82	35719.2
33	14374.8	83	36154.8
34	14810.4	84	36590.4
35	15246.0	85	37026.0
36	15681.6	86	37461.6
37	16117.2	87	37897.2
38	16552.8	88	38332.8
39	16988.4	89	38768.4
40	17424.0	90	39204.0
41	17859.6	91	39639.6
42	18295.2	92	40075.2
43	18730.8	93	40510.8
44	19166.4	94	40946.4
45	19602.0	95	41382.0
46	20037.6	96	41817.6
47	20473.2	97	42253.2
48	20908.8	98	42688.8
49	21344.4	99	43124.4
50	21780.0	100	43560.0

Continuing the Dismil to Square Feet Table (101 to 200 dismil):

Dismil (dm)	Square Feet (sq ft)	Dismil (dm)	Square Feet (sq ft)
101	43995.6	151	65775.6
102	44431.2	152	66211.2
103	44866.8	153	66646.8
104	45302.4	154	67082.4
105	45738.0	155	67518.0
106	46173.6	156	67953.6
107	46609.2	157	68389.2
108	47044.8	158	68824.8
109	47480.4	159	69260.4
110	47916.0	160	69696.0
111	48351.6	161	70131.6
112	48787.2	162	70567.2
113	49222.8	163	71002.8
114	49658.4	164	71438.4
115	50094.0	165	71874.0
116	50529.6	166	72309.6
117	50965.2	167	72745.2
118	51400.8	168	73180.8
119	51836.4	169	73616.4
120	52272.0	170	74052.0
121	52707.6	171	74487.6
122	53143.2	172	74923.2
123	53578.8	173	75358.8
124	54014.4	174	75794.4
125	54450.0	175	76230.0
126	54885.6	176	76665.6
127	55321.2	177	77101.2
128	55756.8	178	77536.8
129	56192.4	179	77972.4
130	56628.0	180	78408.0
131	57063.6	181	78843.6
132	57499.2	182	79279.2
133	57934.8	183	79714.8
134	58370.4	184	80150.4
135	58806.0	185	80586.0
136	59241.6	186	81021.6
137	59677.2	187	81457.2
138	60112.8	188	81892.8
139	60548.4	189	82328.4
140	60984.0	190	82764.0
141	61419.6	191	83199.6
142	61855.2	192	83635.2
143	62290.8	193	84070.8
144	62726.4	194	84506.4
145	63162.0	195	84942.0
146	63597.6	196	85377.6
147	64033.2	197	85813.2
148	64468.8	198	86248.8
149	64904.4	199	86684.4
150	65340.0	200	87120.0

How to Use the Table:

• Identify the land area in dismil.

• Locate the corresponding square feet value in the adjacent column.

• Use this value for entry into legal forms, construction layouts, or online registration systems.

Note:
If the required dismil value is not listed, apply the standard formula:
Square Feet = Dismil × 435.6

Example:

• For 143 dismil → 143 × 435.6 = 62,290.8 sq ft

• For 197 dismil → 197 × 435.6 = 85,813.2 sq ft

 

Conclusion

Dismil is a standardized regional unit used across multiple Indian states for measuring land. Its fixed equivalence to 435.6 square feet ensures consistent application in legal documents, mutation records, layout planning, and digital land systems.

Through this article, readers have learned how to convert dismil into square feet using exact formulas, reviewed state-specific applications, explored calculator tools, and understood how dismil compares with other traditional units such as katha, cent, and bigha.

Despite regional variations in terminology, the dismil-to-square-feet conversion remains constant across jurisdictions, making it a reliable tool for real estate transactions and property documentation.

What’s Next

In the upcoming content, we will explore how dismil compares to larger units like acre and hectare, examine unit mismatches in inheritance documents, and break down how survey maps use dismil in boundary plotting. Readers looking for unit comparisons beyond square feet will find deeper insights into rural and urban land metrics.

 

Frequently Asked Questions

What is the fundamental difference between "Dismil" and "Decimal," and does this difference affect the conversion formula?

The terms Dismil and Decimal are used interchangeably and synonymously in land measurement across Eastern Indian states like Bihar, Jharkhand, and Odisha. The difference is solely in regional terminology, not in the unit value for legal land registry purposes.

• Numerical Equivalence: 1 Dismil = 1 Decimal

• Standard Conversion: 1 Dismil/Decimal = 435.6 Square Feet

Why is Square Feet (Sq Ft) the mandated final reference unit in property registration, even when the land is measured in Dismil?

Square Feet (Sq Ft) is the legally mandated final reference unit to ensure national uniformity and precision in legal and financial documentation, especially for tax and valuation purposes.

• Valuation Basis: Government-prescribed minimum market rates (Ready Reckoner Rate or Guidance Value) are universally fixed per square foot.

• SRO Compliance: Sub-Registrar Office (SRO) software systems are configured to accept Square Feet input to accurately calculate stamp duty, registration charges, and other legal levies.

• Digital Records: The Digital India Land Records Modernization Programme (DILRMP) digitizes and maintains land areas in a standard metric (Square Feet or Square Meter) for consistency.

How does the fixed Dismil conversion (435.6 Sq Ft) help resolve historical boundary disputes in rural areas?

The standardized conversion of 1 Dismil = 435.6 Square Feet acts as a crucial fixed metric to modernize and validate older, traditional records, which were often prone to dispute due to non-uniform local unit definitions.

• Fixed Metric: Dismil provides a stable, measurable area value that removes the ambiguity of older units.

• Digitization: Land survey departments use this fixed square footage value to create precise, digitized boundary maps (BhuNaksha), which are essential for settling ownership ambiguities and preventing fraud.

• Legal Defensibility: The fixed value offers a legally defensible area size that supersedes vague historical descriptions.

How does Dismil compare to the 'Cent' unit of land measurement, and can they be used interchangeably?

Dismil and Cent are numerically identical in value and are fully interchangeable in property documents, though their usage is regional.

• Numerical Equivalence: 1 Dismil = 1 Cent

• Conversion Value: Both are equal to 435.6 Square Feet

Regional Context: Dismil is common in Eastern states (Odisha, Bihar), while Cent is the preferred unit in Southern states (Tamil Nadu, Kerala).

Why do units like Katha and Bigha pose a challenge when converting to Dismil, and why is local calibration required?

Katha and Bigha pose a challenge because their definitions vary significantly from one district or state to another due to historical and local customs, unlike the fixed value of Dismil.

• Non-Uniformity: For example, 1 Bigha in Bihar is approximately 27,225 Sq Ft, but in Assam, it is around 14,400 Sq Ft.

• Calibration Need: An accurate conversion to Dismil requires knowing the specific local standard for Bigha or Katha used in that district or Tehsil. This local definition must be verified with the Tehsildar office.

• Legal Risk: Using a generalized conversion can lead to significant area and valuation errors during registration.

If an online calculator provides a Dismil conversion that differs from 435.6 Sq Ft, what should a property buyer or seller do?

If an online calculator provides a conversion factor other than the standard 1 Dismil = 435.6 Square Feet, the property buyer or seller should disregard the online result and rely only on the official, fixed rate.

• Official Rate: 1 Dismil = 435.6 Square Feet is the legal standard.

• Risk: Inaccurate calculators use generalized or outdated regional values, risking legal rejection of documents and financial discrepancies.

• Resolution: Users should rely on officially certified land survey engineers or the state's official land portal to verify the area using the standardized rate.

What are the standard equivalents for Dismil in larger, national/international units for major land transactions?

For large-scale transactions (like agricultural land or development projects), Dismil must be converted into nationally and internationally recognized units like Acre and Hectare.

The standardized equivalents for 1 Dismil are:

• Acre: 1 Dismil = 0.01 Acre

• Hectare: 1 Dismil approx 0.00405  Hectare

• Square Yard: 1 Dismil approx 48.4 Square Yards

In which specific government land records is the Dismil unit most commonly found, and how can a landowner verify this entry?

The Dismil unit is primarily found in the Record of Rights (ROR) document (also known as Khatian or Patta) and Mutation Records in Eastern Indian states.

These documents contain:

• The area listed in the regional unit (Dismil).

• A corresponding entry in the standardized unit (Square Feet).

Landowners can verify this entry by checking the official state digital land portals (e.g., BhuNaksha or Dharani) and searching the plot number, which displays the area as recorded in the computerized ROR.

When calculating stamp duty, how is the initial Dismil value used to determine the final legal valuation?

Stamp duty is legally calculated based on the property's official market value, which is determined by the land area in Square Feet. The Dismil value is used only as the initial reference.

The final legal calculation process is:

1. Dismil Conversion: The Dismil area is converted to Square Feet (Dismil X 435.6).

2. Valuation: The resulting Square Feet area is multiplied by the official Circle Rate (or Guidance Value) per square foot for that locality.

3. Duty Application: Stamp duty is levied as a percentage of this calculated valuation.

The Sub-Registrar Office software uses the area in Square Feet for the mandatory final valuation step.

Does the term "Dismil" appear in the land records of states outside Eastern India, such as Maharashtra or Telangana, and what is its role there?

The term Dismil is not the primary unit in states like Maharashtra or Telangana, where units like Guntha or Acre are predominant.

• Presence: Dismil may appear in older, legacy records or documents pertaining to regions bordering states where Dismil is common.

• Role: When encountered, it is treated as a standardized metric equivalent to 435.6 Square Feet. It is immediately converted into the prevailing regional or standard units (Square Feet/Guntha) for current legal transactions.

• Example Conversion: 1 Guntha (common in Maharashtra/Telangana) is approximately 6 Dismil.