Bigha to Acre and Acre to Bigha – A Practical Guide to Land Conversion

In many parts of India, land is still measured using traditional units like bigha, while official records and formal transactions often refer to acres. If you’ve come across both terms and found them confusing, this guide will help you understand how to convert bigha into acres.  

The Use of Bigha and Acre in India

India employs both traditional and standardised land measurement units. Bigha remains commonly used in rural and agricultural contexts, particularly in Uttar Pradesh, Bihar, Punjab, Rajasthan, and West Bengal. Acre, by contrast, is a standardised unit recognised in formal documents, lending, and legal processes. 

Since bigha does not have a uniform size across the country, complications in calculation may arise. The value of 1 bigha varies by state, leading to different conversion factors. 

Regional Variations in Acre to Bigha Conversion

• Punjab/Haryana – 1 acre = 4 bigha 
• Uttar Pradesh – 1 acre ≈ 6.61 bigha 
• Bihar/West Bengal – 1 acre ≈ 1.6 bigha 
• Rajasthan – 1 acre = 1.6 to 2.5 bigha (region-specific) 

How to Convert Bigha to Acre?

To convert bigha to acre, divide the land area in bigha by the state-specific bigha-per-acre value. 

Examples: 

• In Punjab: 10 bigha ÷ 4 = 2.5 acres 
• In Uttar Pradesh: 10 bigha ÷ 6.61 ≈ 1.51 acres 

How to Convert Acre to Bigha?

To convert acres to bigha, multiply the number of acres by the state-specific bigha equivalent. 

Examples: 

• In Punjab: 3 acres × 4 = 12 bigha 
• In West Bengal: 3 acres × 1.6 = 4.8 bigha 

Comparison of 10 Bigha to Acres

Here is a state-wise summary: 

• Punjab/Haryana – 10 bigha = 2.5 acres 
• Uttar Pradesh – 10 bigha ≈ 1.51 acres 
• Bihar/West Bengal – 10 bigha ≈ 6.25 acres 

How Does the Conversion Help?

These conversions are relevant for: 

• Property purchases and sales 
• Loan applications involving land 
• Legal and revenue documentation 
• Comparisons between land parcels across different states