1 Acre 1 Bigha Kitna Hota Hai — State-Wise Conversion Guide 2026
Understanding land measurement units is critical for anyone buying or selling property in India. If you have ever wondered "1 acre 1 bigha kitna hota hai," you are not alone. The confusion between acres and bigha is one of the most common issues Indian property buyers face, especially when deals span multiple states. This article breaks down the exact conversion, state-by-state variations, and everything you need to know to avoid costly mistakes.
What Is an Acre?
An acre is a standardized unit of land measurement used worldwide. Its value does not change regardless of where you are in India:
- 1 Acre = 43,560 square feet
- 1 Acre = 4,840 square yards
- 1 Acre = 4,046.86 square metres
Since the acre is a fixed and universally accepted unit, it serves as a reliable baseline for comparing land sizes. However, when you try to convert acres into bigha, things get complicated because bigha is not a standardized unit.
What Is a Bigha?
A bigha is a traditional unit of land measurement widely used across India, Nepal, and Bangladesh. Unlike the acre, the size of one bigha varies significantly from state to state. This variation is the root cause of confusion in property transactions.
The general conversion that most people reference is:
1 Acre ≈ 1.613 Bigha (general average)
But this is just an average. The actual number can range from 1.6 bigha to over 6 bigha depending on the region.
General Acre to Bigha Conversion Formula
The basic formula for converting acres to bigha is:
Bigha = Acre × Conversion Factor
For most of India, the conversion factor is 1.6:
- 2 Acres × 1.6 = 3.2 Bigha
For western Uttar Pradesh (Meerut region), the conversion factor jumps to 6.4:
- 2 Acres × 6.4 = 12.8 Bigha
State-Wise Acre to Bigha Conversion Table
| State | 1 Acre = ? Bigha | 1 Bigha = ? Sq Ft |
|---|---|---|
| Uttar Pradesh (Eastern) | 1.6 Bigha | 27,225 sq ft |
| Uttar Pradesh (Western/Meerut) | 6.4 Bigha | 6,806.25 sq ft |
| Bihar | 1.6 Bigha | 27,225 sq ft |
| Rajasthan | 1.6 Bigha | 27,225 sq ft |
| Madhya Pradesh | 1.6 Bigha | 27,225 sq ft |
| West Bengal | 3.025 Bigha | 14,400 sq ft |
| Punjab | 4.8 Bigha | 9,070 sq ft |
| Haryana | 1.6 Bigha | 27,225 sq ft |
| Assam | 3.025 Bigha | 14,400 sq ft |
This table makes it clear that the same 1 acre of land can be expressed as 1.6 bigha in one state and 6.4 bigha in another. Never assume the conversion without checking your specific region.
Detailed Land Measurement in Uttar Pradesh
Pucca Bigha vs Kaccha Bigha
In UP, there are two types of bigha measurements:
- Pucca Bigha (Official): 27,225 square feet — the legally recognized unit used in government records, land registries, and property documents.
- Kaccha Bigha (Unofficial): 9,075 square feet — sometimes used informally in rural areas but not recommended for any legal or official purpose.
Always insist on pucca bigha measurements in property transactions to avoid disputes later.
Sub-Units of Bigha in UP
| Unit | Equivalent |
|---|---|
| 1 Bigha | 20 Katha |
| 1 Katha | 20 Dhur |
| 1 Biswa | 1/20th of Bigha = 1,361.25 sq ft |
Detailed Land Measurement in Bihar
| Unit | Equivalent |
|---|---|
| 1 Bigha | 27,225 sq ft |
| 1 Bigha | 20 Katha |
| 1 Katha | 1,361.25 sq ft |
| 1 Dhur | 68.06 sq ft |
| 1 Decimal | 435.6 sq ft |
According to the Bihar Revenue Department, the official conversion is: 1 Bigha = 0.625 Acre, meaning 1 Acre = 1.6 Bigha.
Conversion Table: 1 to 20 Acres to Bigha
| Acre | Bigha (×1.6) | Acre | Bigha (×1.6) |
|---|---|---|---|
| 1 | 1.6 | 11 | 17.6 |
| 2 | 3.2 | 12 | 19.2 |
| 3 | 4.8 | 13 | 20.8 |
| 4 | 6.4 | 14 | 22.4 |
| 5 | 8.0 | 15 | 24.0 |
| 6 | 9.6 | 16 | 25.6 |
| 7 | 11.2 | 17 | 27.2 |
| 8 | 12.8 | 18 | 28.8 |
| 9 | 14.4 | 19 | 30.4 |
| 10 | 16.0 | 20 | 32.0 |
Calculation Examples
Example 1: 3-acre plot in Jaipur, Rajasthan
- 3 × 1.6 = 4.8 Bigha
- In square feet: 3 × 43,560 = 130,680 sq ft
Example 2: 3-acre plot in Ludhiana, Punjab
- 3 × 4.8 = 14.4 Bigha
- In square feet: 3 × 43,560 = 130,680 sq ft
Example 3: 5-bigha property in Kolkata, West Bengal
- 5 ÷ 3.025 = 1.65 Acres
- In square feet: 5 × 14,400 = 72,000 sq ft
Why Bigha Is Not Standardized
The bigha originated as a traditional agricultural measurement during the Mughal era and was later adopted by British colonial administrators. Each region developed its own version based on local farming practices, soil types, and land usage patterns. Unlike the acre, which was codified under international standards, bigha remained a regional unit.
This is why government land records, property registrations, and revenue departments across India use different bigha values. The lack of standardization makes it essential for property buyers to verify local measurements before any transaction.
Tips for Property Buyers
- Always verify the conversion factor for your specific state and district before calculating land area.
- Use official government portals for land records (UP Bhulekh, Bihar Bhumi) to cross-check measurements.
- Never rely on kaccha bigha for legal documents or property registrations.
- Hire a local surveyor for large land purchases to ensure accurate measurement.
- Keep conversion tables handy when dealing with properties across state lines.
- Consult a property lawyer if you notice discrepancies between listed and actual land area.
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