Enter Bigha and see it convert instantly to Katha, Acre, Shotok (Decimal), Sq Ft, Sq Meter and Hectare all at once — with state-wise values and a plot dimension and land cost calculator.
Values are commonly referenced regional standards and can also vary by district within a state. Confirm the exact local figure with land records before any legal transaction. "Shotok" (শতক) is the Bengali/Bangladeshi name for Decimal — the same unit as Cent (1/100 Acre = 435.6 sq ft).
| Bigha | Square Feet (West Bengal) | Katha (WB) |
|---|---|---|
| 1 Bigha | 14,400 sq ft | 20 Katha |
| 2 Bigha | 28,800 sq ft | 40 Katha |
| 5 Bigha | 72,000 sq ft | 100 Katha |
| 10 Bigha | 1,44,000 sq ft | 200 Katha |
| State / Bigha Type | 1 Bigha (Sq Ft) | 1 Katha (Sq Ft) |
|---|---|---|
| West Bengal | 14,400 | 720 |
| Assam | 14,400 | 2,880 |
| Bihar | ~27,220 | ~1,361 |
| Uttar Pradesh (Purvanchal/Eastern) | ~27,225 | ~1,361 |
| Uttar Pradesh (Western, approx.) | ~6,806 | — |
| Rajasthan (Pucca) | ~27,225 | ~1,361 |
| Rajasthan (Kaccha) | ~17,424 | — |
| Haryana | ~27,225 | ~1,361 |
| Punjab | ~9,070 | — |
| Himachal Pradesh | ~8,712 | — |
| Madhya Pradesh / Chhattisgarh | ~12,000 | — |
Figures marked with ~ are commonly referenced regional averages; local district variation can occur, especially for Bigha in Bihar, UP, Rajasthan and Punjab.
Bigha is one of the oldest land measurement units in the Indian subcontinent, used long before the square foot or hectare became standard. Unlike metric units, which were defined once and applied uniformly, Bigha was fixed independently by regional rulers, zamindari records, and later British-era land administration in each province. That's why the same word "Bigha" can mean 14,400 sq ft in West Bengal and roughly 27,220 sq ft in Bihar — nearly double.
This becomes a real problem during land transactions. A buyer comparing a "2 Bigha plot in Bihar" against a "2 Bigha plot in West Bengal" without converting to a common unit could end up comparing a much larger parcel to a much smaller one.
Several states use two distinct sizes rather than a single value. Rajasthan distinguishes between a larger "Pucca" Bigha (about 27,225 sq ft) and a smaller "Kaccha" Bigha (about 17,424 sq ft), and Uttar Pradesh's Bigha shrinks noticeably moving from the eastern Purvanchal region toward the western districts. This calculator's state dropdown includes these named variants where they're well documented, though even finer district-level differences can still exist within a single state or Bigha type — always confirm the exact locally accepted figure before a transaction.
Land is often described by its physical dimensions before it's described in traditional units — a broker might say "40 feet by 30 feet" rather than quoting a Katha figure directly. The Plot Dimension tab multiplies your entered length and width to get the raw square footage, then converts that into Katha and Bigha using the conversion factor for your selected state, so you don't need to do the arithmetic in two separate steps.
When visiting a plot in person, the dimensions marked on stakes or a rough boundary measurement are usually in feet, not Katha. Converting on the spot lets you sanity-check what a seller is telling you against what the physical plot actually measures — a useful check against plots advertised with an inflated traditional-unit figure.
Since a 1,200 sq ft plot is roughly 1.67 Katha in West Bengal but a very different fraction of a Bigha in Bihar or UP, always set the correct state before reading off the Katha/Bigha result — the same physical plot converts to a different traditional-unit figure depending on which state's standard you apply.
Land prices in eastern India are often quoted per Katha or per Bigha rather than per square foot, which makes it hard to compare a rural plot's asking price against a per-square-foot rate you might see for urban property. The Land Cost tab takes your area and a price per unit, and gives you both the total cost and an equivalent price-per-square-foot figure for direct comparison.
If one plot is quoted at ₹5,00,000 per Katha and another at ₹150 per square foot, converting both to the same per-square-foot basis is the only reliable way to tell which is actually the better rate — glancing at the two headline numbers side by side is misleading since they're not on the same unit.
The total cost shown here is purely area × rate. It doesn't account for registration charges, stamp duty, brokerage, or any premium for road access, shape, or corner-plot status — all of which typically add to the final amount you'll actually pay for a real transaction.
Beyond the state-to-state differences this converter handles, a handful of states have well-documented sub-variants that go a level deeper than the state alone. Rajasthan formally distinguishes between a larger "Pucca" Bigha and a smaller "Kaccha" Bigha, both used in different contexts within the same state, and Uttar Pradesh's Bigha shrinks considerably moving from the eastern Purvanchal belt toward western districts near Delhi. This converter includes these named variants as separate options in the state dropdown.
Beyond these documented cases, some districts apply further local adjustments to historical land records that aren't consistently published in a single authoritative source — which is exactly why every land conversion tool, including this one, comes with the same caution: treat the figure as a starting estimate, and confirm the exact locally accepted value with your district's land records office or a registered surveyor before it goes into any legal document.
These four states account for the overwhelming majority of everyday Bigha and Katha usage in India, and each has its own conventions worth knowing before a transaction.
The most standardized of the four, with 1 Bigha fixed at 14,400 sq ft and 1 Katha at 720 sq ft across most of the state, making conversions here more reliable than in states with wider district variation.
Bigha in Bihar runs noticeably larger than in Bengal, at roughly 27,220 sq ft, with 1 Katha around 1,361 sq ft — a difference significant enough that treating a Bihar Bigha and a West Bengal Bigha as interchangeable would overstate a Bengal plot's size by nearly half.
The state with the widest internal variation among the four — Purvanchal (eastern UP) uses a Bigha close to Bihar's at roughly 27,225 sq ft, while western UP districts use a considerably smaller figure, making it essential to know which part of the state a plot is in before applying any single conversion factor.
Assam's Bigha matches West Bengal's at 14,400 sq ft, but its Katha is defined differently — 2,880 sq ft in standard usage (5 Katha per Bigha) rather than Bengal's 720 sq ft (20 Katha per Bigha), so the two states' Bigha figures align while their Katha figures do not.
It depends on the state. 1 Bigha is 14,400 sq ft in West Bengal and Assam, about 27,220 sq ft in Bihar, and about 27,225 sq ft in Uttar Pradesh (Purvanchal) and Rajasthan (Pucca). Always confirm the exact local value before relying on it for a transaction.
1 Katha is 720 sq ft in West Bengal, 2,880 sq ft in standard Assam usage, and roughly 1,361 sq ft in Bihar and Uttar Pradesh, since 1 Bigha equals 20 Katha in most of these regions.
Bigha is a pre-metric traditional unit standardized differently under regional and British-era administrations, so unlike the square foot or hectare, it was never unified nationally.
1 Acre equals 43,560 sq ft. In West Bengal that's roughly 3.03 Bigha, while in Bihar or Uttar Pradesh it's closer to 1.6 Bigha, since their Bigha is a larger unit.
In West Bengal, where 1 Katha is 720 sq ft, 1 Acre works out to about 60.5 Katha. In Bihar, where 1 Katha is larger at about 1,361 sq ft, 1 Acre is closer to 32 Katha.
Using the West Bengal standard of 720 sq ft per Katha, 1,200 sq ft is about 1.67 Katha. In Bihar, where 1 Katha is about 1,361 sq ft, the same 1,200 sq ft works out to roughly 0.88 Katha.
1 Katha (720 sq ft in West Bengal) is enough for a small house footprint, though the actual buildable area depends on local setback rules, floor area ratio (FAR), and how many floors the local municipal bylaws permit — this converter gives plot size only, not construction feasibility.
This tool uses commonly referenced regional values for quick estimates. For registry, sale deeds, or legal filings, confirm the exact local conversion factor — including any district-level variation — with your state's land records department or a registered surveyor.
Guntha (1,089 sq ft) is common in Maharashtra and Karnataka, Kanal (5,445 sq ft) and Marla (272.25 sq ft) are used in Punjab, Haryana, and Himachal Pradesh, and Cent (435.6 sq ft) is widely used in Kerala and Tamil Nadu.
Yes. Shotok (শতক) is the Bengali and Bangladeshi name for Decimal — both refer to 1/100th of an Acre (435.6 sq ft), the same unit called "Cent" in Kerala and Tamil Nadu.