Land Measurement Units in India: Complete Guide

Why India Still Uses Traditional Units Alongside the Metric System

The Standards of Weights and Measures Act made the metric system India's sole legal system of measurement from 1 April 1962, and land transactions today are registered, taxed, and reported in hectares or square metres in every state's official paperwork. So why does a seller in western Uttar Pradesh still tell you his field is "3 Bigha," a Haryana broker quote a plot in Kanal, and a Nainital seller measure in Nali rather than square metres?

The answer is that land measurement in India is fundamentally older than the metric system, and older than most of the legal apparatus built on top of it. Long before independence, and in many places long before British administration, village-level revenue record-keeping ran on a patwari (village revenue accountant) walking each field, assigning it a khasra (खसरा) number, and recording its area in whatever local unit that village's farming community already used to describe land — a system built around the practical realities of a single agrarian community, not a national standard. When the metric system became law in 1957, it changed the units used in new official documents and calculations, but it did not — and legally could not, in most cases — retroactively rewrite a century or more of existing jamabandi (जमाबंदी) and khatauni (खतौनी) entries that had already fixed a village's land in Bigha, Biswa (बिस्वा), Kanal, or Nali terms.

Three forces have kept these traditional units alive in everyday use ever since:

• Revenue-record inertia. A khasra entry recorded in Bigha-Biswa decades ago is not automatically reissued in hectares; the historical record stays in its original unit unless a fresh survey or settlement specifically re-records it, and full re-surveys happen only once every several decades in most districts.
• Everyday agrarian habit. Farmers, local brokers, and rural buyers think and negotiate in the unit their community has always used — a Bigha or a Kanal is an intuitive, human-scale unit for describing a field in a way "0.4047 hectares" simply isn't for someone who has spent a lifetime farming in Bigha terms.
• Genuine local calibration. Unlike the metric system's fixed, universal definitions, many traditional units were originally calibrated to local conditions — the amount of land a pair of bullocks could plough in a day, or a locally standard rope or pole length used to measure a field — which is a large part of why the same unit name ended up meaning different things in different regions to begin with.

The practical result, covered in depth below, is that a buyer moving between Farmland India's six corridor states — or even between two districts of the same state — cannot assume a single, portable "1 Bigha = X" answer travels with them. It's exactly the same reason our companion Khasra and Khatauni guide insists on pulling a fresh record from the correct local portal rather than working from a general description: the specific village and district determine the actual number, not a national rule of thumb.

It's also worth knowing that this corridor's units are only part of a much larger national picture — a Gunta and Guntha in Karnataka and Maharashtra, a Cent in Kerala and Tamil Nadu, a Katha in Bihar and West Bengal, and a Dhur in several eastern states each play the same local role that Bigha, Kanal and Nali play here, each with its own state-specific size. Farmland India operates only in the six-state North India corridor covered in this guide, so those other regional units sit outside our scope here — but recognising that the underlying pattern (a locally calibrated traditional unit sitting alongside the metric system) repeats nationwide is a useful reminder that this isn't a quirk specific to our corridor; it's simply how land has been measured across most of agrarian India for a very long time.

The Standard Reference Units

Before working through the traditional units, it helps to fix the four standard, metric-system-consistent units this entire guide converts everything back to. These are the units that appear on official documents, government portals, and any calculator or converter tool worth trusting:

• Acre — the traditional English unit still in wide informal and semi-official use across India. 1 Acre = 43,560 square feet = 4,840 square yards ≈ 0.4047 hectares.
• Hectare — the standard metric unit for land area, and the unit official ceiling laws, ceiling calculations, and most modern government land records ultimately express area in. 1 Hectare = 10,000 square metres ≈ 2.471 acres.
• Square Yard / Gaj (गज) — the standard unit for smaller residential and farmhouse plots, especially in North India, and the unit most Haryana, Punjab and Uttarakhand traditional-unit conversions ultimately reduce to. 1 Square Yard = 9 square feet ≈ 0.836 square metres.
• Square Feet — the finest-grained standard unit, used for the smallest plots and for expressing precise conversion factors (a Marla, for instance, is easiest to state precisely in square feet).

Bigha: The Most Common — and Most Variable — Unit

The Bigha (बीघा) is the single most widely used traditional land unit across North and Central India, and also the single biggest source of buyer confusion covered in this guide, because its actual size is not fixed by any national standard — it varies by state, and in several states it varies meaningfully by district within the same state.

Rajasthan: Pucca and Kachha Bigha

Rajasthan runs two distinct Bigha measures side by side, distinguished as Pucca (पक्का, meaning roughly "standard" or "solid") and Kachha (कच्चा, meaning "raw" or "informal"). A Pucca Bigha is 27,225 square feet — 3,025 square yards, or approximately 2,529 square metres, roughly 0.625 acre. A Kachha Bigha is smaller, at 17,424 square feet — 1,936 square yards, approximately 1,619 square metres, roughly 0.4 acre. Both terms genuinely coexist in Rajasthan's local usage and revenue records, which of Rajasthan's own districts and even which specific document you're reading determine which one applies — this is precisely the kind of state-specific detail our planned sibling article, Bigha and Biswa in Rajasthan, will cover in full district-by-district depth.

Uttar Pradesh: the same state, four different answers

UP is the clearest illustration in this entire guide of why "how big is a Bigha" cannot have one national answer. In parts of western UP, a Bigha runs as small as roughly 6,806 square feet (about 756 square yards, roughly 632 square metres) — while in Lucknow and much of eastern UP, the same word describes a plot of roughly 27,225 square feet (3,025 square yards, roughly 2,529 square metres) — a difference of nearly four times for the identical unit name, within the borders of one state. A separate, commonly cited western UP figure sits at roughly 9,075 square feet (1,008 square yards, roughly 843 square metres), which some local records treat as a "large Bigha" distinct from the smaller regional variant. There is no way to state a single, reliable "UP Bigha" figure that applies safely to a purchase anywhere in the state — the district, and sometimes the tehsil, is not optional information here, it's the entire answer. Our planned deep dive, Bigha in Uttar Pradesh, will map this district-by-district in full.

Haryana and Punjab: a less-used, disputed figure

In the Haryana-Punjab belt, the Bigha is used far less consistently than in Rajasthan or UP, precisely because the Kanal-Marla system covered in the next section is this belt's dominant everyday and revenue-record unit. Where a Bigha figure does appear in local usage or older records here, our own cross-checking of secondary sources for this article found real disagreement — some sources describe a Haryana/Punjab Bigha at roughly 8,712 square feet (968 square yards, close to Himachal Pradesh's figure below), while others describe a "Pukhta" Bigha closer to the Rajasthan Pucca figure of 27,225 square feet. We were not able to resolve this to a single, confident figure from primary sources, and we're flagging it rather than picking one — if you encounter a Bigha figure in a Haryana or Punjab document, treat Kanal-Marla as the more reliable everyday reference unit in this belt, and confirm any quoted Bigha figure directly with the local Patwari.

Himachal Pradesh: a smaller, hill-calibrated Bigha

Himachal Pradesh's Bigha runs smaller still — approximately 8,712 square feet (968 square yards, roughly 809 square metres), with the useful shorthand that 5 Bigha equal roughly 1 acre in HP's system. As with the other hill and semi-hill states in this guide, terraced, fragmented hill terrain historically made a smaller working unit more practical than the larger plains-style Bigha used further south and east. Our planned sibling article, Bigha and Biswa in Himachal Pradesh, covers this in full, including HP's own Kanal usage in parts of the state.

The throughline across all four of these is worth stating plainly, because it's the single most important sentence in this article: a Bigha is not a fixed unit of area — it is a locally defined unit whose size is set by state and often district-level custom and revenue practice, ranging from roughly 0.156 acre in parts of hill Uttarakhand and western UP up to 0.625 acre in Rajasthan's and eastern UP's Pucca variants. Any Bigha-to-acre conversion you see quoted online — including every figure in this guide — is a starting reference, not a substitute for confirming the specific local factor before you calculate a purchase price or a ceiling figure from it.

Biswa: The Bigha's Standard Subdivision

The Biswa (बिस्वा) is the standard subdivision of the Bigha across essentially every region that uses the Bigha at all, and here there is genuinely good news: the ratio is constant even where the absolute size isn't. 1 Bigha = 20 Biswa, universally, whether you're working with a Rajasthan Pucca Bigha, a Kachha Bigha, a western UP Bigha, or a Himachal Bigha. What changes is only the absolute size of one Biswa, because it's simply one-twentieth of whichever Bigha applies locally — a Biswa in Rajasthan's Pucca system (27,225 ÷ 20 ≈ 1,361 square feet) is nearly twice the size of a Biswa in Himachal Pradesh's system (8,712 ÷ 20 ≈ 436 square feet).

This is actually the most useful practical fact in this entire guide for a field-level check: if you already know (or can confirm) which Bigha variant applies to your specific village, you can derive the local Biswa size yourself by simply dividing by 20 — you don't need a separate, independently sourced Biswa conversion factor. The reverse is also a useful sanity check: if a seller or a record quotes you a Biswa figure that, multiplied by 20, doesn't land on any of the standard Bigha figures for that state, that mismatch is worth asking about directly rather than assuming a typo.

Kanal and Marla: The Haryana-Punjab System

Kanal (कनाल) and Marla (मरला) are the dominant everyday and revenue-record units across Haryana and Punjab, and — unlike the Bigha above — they are genuinely well-standardised and consistent across this belt, a legacy of the two states' shared revenue administration before the 1966 Punjab Reorganisation Act split them apart. The underlying base unit is the Karam, historically standardised at 5.5 feet, from which the rest of the system is built:

• 1 Marla = 272.25 square feet ≈ 30.25 square yards (Gaj)
• 1 Kanal = 20 Marla = 5,445 square feet ≈ 605 square yards
• 1 Acre = 8 Kanal = 160 Marla = 43,560 square feet ≈ 4,840 square yards

Because this is one of the more internally consistent traditional systems covered in this guide, it's a reliable one to work with directly: a 2-Kanal plot is confidently 10,890 square feet regardless of which Haryana or Punjab district you're in, in a way a "2-Bigha" plot simply isn't. Kanal-Marla is also used, in parts, in Himachal Pradesh and Jammu & Kashmir, sharing the same historical Punjab-administration roots — though HP buyers should confirm which system (Bigha-Biswa or Kanal-Marla) is the operative one for their specific district, since both circulate there. Our planned sibling article, Kanal and Marla in Haryana and Punjab, covers the full worked conversions and common transaction sizes in this system.

Killa: Punjab's Word for Acre

Killa (किल्ला) is simply Punjab's — and, to a lesser extent, Haryana's — local revenue-record term for an acre: 1 Killa = 1 Acre = 8 Kanal, used interchangeably with "acre" in everyday transactions and often in the jamabandi itself. A related, larger block-survey unit worth knowing is the Murabba (मुरब्बा) — a square block of land historically laid out during the canal-colony settlements of undivided Punjab, standardised at 25 Killa (25 acres), approximately 10 hectares. A Murabba is less a unit you'll transact in directly today and more a term you may still encounter in older Punjab and Haryana revenue documents describing how a larger estate was originally surveyed and blocked out — useful context if an old document references "Murabba number" alongside a Khasra number. Our planned sibling article, Marla, Kanal and Killa in Punjab, goes deeper on Punjab's specific transaction conventions, including how Killa, Kanal and Marla are quoted together in a single listing.

Nali and Mutthi: Uttarakhand's Hill Units

Uttarakhand's hill districts use their own distinct measurement pair, Nali (नाली) and Mutthi (मुट्ठी), calibrated to the smaller, terraced, hillside plots typical of Kumaon and Garhwal agriculture rather than the larger, flatter fields the Bigha and Kanal systems were built around. 1 Nali is commonly cited at 2,160 square feet — 240 square yards, approximately 200.7 square metres, roughly 0.0496 acre. 1 Mutthi is a smaller subdivision, at 1/16 of a Nali — approximately 135 square feet, roughly 12.5 square metres — used for genuinely small hillside terraces and plot fragments too small to describe conveniently in whole Nali.

Worth noting for cross-checking purposes: Uttarakhand's hill-district Bigha (distinct from the plains-district Bigha used in Haridwar and Udham Singh Nagar, which follows a Rajasthan/UP-style Kachha figure) works out to roughly 3.15 Nali, which lines up consistently with the hill Bigha figure of approximately 6,806 square feet cited earlier in this guide (3.15 × 2,160 ≈ 6,806) — a rare case in this guide where two independently sourced figures cross-check cleanly against each other, which is why we're presenting the Nali and Mutthi figures above with reasonably good confidence. Our planned sibling article, Nali, Mutthi and Bigha in Uttarakhand, will cover the hill-versus-plains distinction in full, including how the two systems coexist within the state's own 13 districts.

State-by-State Conversion Reference Table

The table below brings together every figure covered above for Farmland India's six corridor states, converted to a consistent set of reference columns. Treat every row as a starting reference for your research, not a number to plug directly into a contract — the notes column flags exactly where local confirmation matters most, and we've deliberately not smoothed over the disagreements our own research turned up.

Why Getting This Wrong Costs Real Money

A unit-conversion error in a land transaction isn't an academic mistake — it changes how much land you actually receive for your money, or how you compare one deal against another. Two specific failure patterns show up repeatedly in this corridor:

Paying for land you don't actually get. Say a seller in a district where the local Bigha is the smaller, roughly 6,806-square-foot variant quotes you a price "per Bigha," and you mentally convert using the larger, roughly 27,225-square-foot Rajasthan-style Pucca Bigha instead — a four-times error. On a 5-Bigha parcel, that single wrong assumption means you believe you're buying roughly 3.1 acres when the actual parcel, at the correct local conversion, is closer to 0.78 acre. That is not a rounding error; it is the difference between a viable investment-sized parcel and a plot a quarter of the size you thought you were negotiating for.

Misjudging a per-acre price comparison across states. A buyer comparing a "₹15 lakh per Bigha" quote in one state against a "₹40 lakh per acre" quote in another cannot meaningfully compare those two numbers until both are converted to the same reference unit — and because the Bigha itself varies by state (see the table above), the correct per-acre price behind that first quote could be anywhere from roughly ₹24 lakh to ₹96 lakh per acre depending on which Bigha the seller actually means. A buyer who skips this conversion step risks either overpaying relative to a comparable parcel elsewhere in the corridor, or dismissing a genuinely competitive deal as overpriced because they compared it against the wrong converted baseline.

Both patterns share the same root cause: treating a traditional unit's name as if it carries a single, portable meaning, the way "kilogram" or "litre" does. It doesn't — and the cost of that assumption falls entirely on the buyer, not the seller, since the seller already knows what their own local unit means.

There's a third, quieter version of this mistake worth flagging specifically for buyers dealing with a state ceiling calculation, like the ones covered in our state-by-state agricultural land rules guide: every ceiling act in this corridor states its permissible-area figures in hectares or acres, not in Bigha or Kanal. If you're assembling a multi-parcel holding described to you in local units and need to check it against a ceiling limit, convert every parcel to the same standard unit first — a family that believes it holds "18 Bigha" comfortably under a ceiling expressed in acres could be meaningfully over or under that limit depending entirely on which Bigha was actually meant, and a ceiling breach is a materially more serious problem than an ordinary pricing mismatch.

How to Confirm the Correct Local Conversion Factor

Given everything above, the practical guidance for any purchase in this corridor is straightforward, even if it takes a small amount of extra effort: never rely on a single, national "1 Bigha = X" (or Kanal, or Nali) answer for an actual transaction — confirm the district-specific figure before you calculate anything. In practice, that means one or more of the following, roughly in order of reliability:

• Check the state land-record portal's own published conversion, where one exists. Several state revenue departments publish their own official Bigha-to-acre (or equivalent) conversion factors alongside their digitised khasra-khatauni records — where we could find and confirm one directly for a specific figure in this guide, we've noted it in the table above and in the sources section below. Where a state's portal did not have a clearly published, citable conversion table available to us at the time of writing, we've relied on convergent secondary sources instead and flagged the figure's confidence level accordingly, rather than presenting a portal citation we couldn't actually verify.
• Ask the local Patwari or Tehsildar directly. The revenue official responsible for your specific village's records will know the operative local conversion with certainty — this is the single most reliable source for a live transaction, and it costs nothing but a visit or a phone call.
• Cross-check the seller's quoted figure against the khasra record itself. As our companion guide, Khasra and Khatauni Explained, covers, most khasra records already state area in the local traditional unit — pull the actual record and compare it against what you've been told, rather than taking a verbal quote at face value.
• Use a reputable converter tool as a starting estimate only, never as a final figure. Farmland India's own unit-converter tool, anchored by this guide, is built to make this comparison easier — but treat any converter's output, including ours, as your starting point for confirmation rather than your final answer for a live purchase decision.

Planned Deep-Dive Guides

This guide is the hub for a full cluster of state-specific measurement deep dives we're building out for the corridor, each covering its state's unit or unit-pair in the district-level detail this overview can only summarise. As they go live, we'll link them directly from the sections above; for now, here's the full planned set:

• Bigha to Square Yard, Acre and Hectare — the general Bigha conversion mechanics across all the variants covered in this guide, worked through in detail.
• Bigha in Uttar Pradesh — the district-by-district breakdown behind the near-fourfold variation flagged above.
• Bigha and Biswa in Rajasthan — the full Pucca-versus-Kachha picture, district by district.
• Kanal and Marla in Haryana and Punjab — worked transaction-size examples in this belt's dominant system.
• Nali, Mutthi and Bigha in Uttarakhand — the hill-versus-plains distinction in full.
• Bigha and Biswa in Himachal Pradesh — HP's own figures and where Kanal-Marla usage overlaps.
• Marla, Kanal and Killa in Punjab — Punjab-specific transaction conventions and the Murabba's continuing role in old records.

Common Mistakes

• Applying a single, remembered "Bigha = X acres" figure everywhere. The single biggest error this guide exists to prevent — confirm the specific state and district figure every time.
• Assuming Biswa has a fixed absolute size. It doesn't — only the 1-Bigha-equals-20-Biswa ratio is fixed; the absolute size of a Biswa depends entirely on which Bigha applies locally.
• Comparing per-unit prices across states without converting to a common reference unit first. A "per Bigha" or "per Kanal" price is not comparable across states until both are converted to acres or hectares.
• Treating an online converter's output as final rather than as a starting estimate to confirm against the local Patwari, Tehsildar, or the khasra record itself.
• Ignoring the Hindi/vernacular term printed on an actual revenue record because it doesn't match the English term used in conversation — the same unit is very often the one on both sides; confirm rather than assume they're different.

How Farmland India Helps

This guide anchors Farmland India's own land unit converter tool, built specifically to handle the state-by-state and, where flagged above, district-by-district variation covered here — rather than applying a single national conversion factor the way many generic calculators do. Every Farmland India Reviewed listing states its area in both the applicable local unit and a standard metric reference (acres and hectares), cross-checked against the parcel's own khasra record, so you're never left converting a seller's verbal quote yourself.

Frequently Asked Questions