How accurate is the surveyor's averaging method?

For roughly-rectangular plots where opposite sides differ by less than 10 to 15 percent, accuracy lands within 2 to 3 percent of true area — well inside the typical measurement tolerance for residential property in Pakistan. Accuracy drops as plot irregularity grows. The calculator automatically flags plots where opposite sides differ by more than 15 percent and recommends a professional survey for legal or high-value transactions. Trust the flag — don't override it just to get a number on screen for an expensive plot.

What is the difference between Marla and Kanal?

Both are traditional Pakistani area units. 1 Kanal equals 20 Marla equals 5,440 sq ft in the standard 272 sq ft Marla system. Marla is the unit for smaller residential plots (3, 5, 7, 10 Marla are the most common sizes); Kanal is for larger plots (1 Kanal, 2 Kanal, 4 Kanal). Farmland and very large parcels are usually quoted in acres — roughly 8 Kanal equals 1 acre equals 43,560 sq ft. Memorise these two ratios once and you'll never feel lost in a Pakistani property conversation again.

Which Marla size should I use?

Standard (Shahi) Marla of 272 sq ft is correct for DHA, Bahria Town, government schemes, and most modern developments in Punjab and KPK. Some older societies use 250 sq ft ("Big Marla" or "Punjab Marla"); certain pre-Partition Karachi areas have used 225 sq ft historically. If your registry document or housing-society bylaws specify a different value, use the Custom option and enter it exactly. The wrong Marla setting becomes a real-money discrepancy — at current Lahore DHA prices, a 1 percent Marla mismatch on a 10 Marla plot is a few lakhs of rupees.

How do I measure the four sides of my plot?

Use a long measuring tape (50-meter cloth tape is ideal) or a surveyor's wheel for distances over 50 ft. Measure from corner stake to corner stake, walking right along the boundary line. For precision, take each measurement twice and average them — tapes sag, wheels slip on rough ground. If the plot has a boundary wall, measure along the outside face (the legal boundary usually sits at the wall's outer edge). For irregular corners, record exactly where you started and stopped so the next person can repeat the measurement consistently.

What if my plot has more than four sides?

This calculator handles the four-sided case (rectangles, trapezoids, irregular quadrilaterals — which is most urban Pakistani plots). For plots with 5, 6, 7, or 8 sides, use the dedicated calculators in the related links (we have one for each). Or split the shape into simple quadrilaterals or triangles using diagonal measurements, calculate each piece separately, and sum the totals. The triangulation method is what professional surveyors use for genuinely irregular subdivisions.

Why does my calculated area differ from the plot's listed area?

Several possibilities: rounding (listings often round to the nearest quarter-Marla); a different Marla size used by the listing agent versus this tool (always confirm); the averaging method approximating irregular plots while official records used triangulation; built-up area versus plot area confusion (built-up includes wall thickness, plot does not); and occasional honest measurement errors at the time of registry. A 1 to 3 percent variance is normal and expected. Anything bigger warrants a surveyor check — and possibly a hard conversation with the dealer before you put down token money.

Is this accurate enough for a property purchase decision?

For initial screening and ballpark verification, absolutely — use it before visiting, before paying token money, and before trusting any dealer's number. For the final purchase paperwork and legal transfer, always demand a current Patwari-certified demarcation or a licensed surveyor's report. Those documents carry signed and stamped measurement points and are recognised in court. Relying solely on a calculator for a multi-crore property transaction is penny-wise, pound-foolish — the surveyor's fee is the cheapest insurance you'll buy that month.

What is a 'regular' vs 'irregular' plot?

A regular plot has equal opposite sides (front equals back, left equals right) — a perfect rectangle. Irregular plots have unequal opposite sides and are common on corners, in older settlements, and in terrain-constrained developments. In Pakistani real estate, regular plots typically command a 5 to 10 percent premium per Marla because they're easier to build on without wasting space — no awkward angles to design around, no custom foundations along odd boundaries, no leftover triangular slivers that the architect can't use.

Can I use this for agricultural land?

Yes, though farmland is usually quoted in acres or regional units like Killa (1 Killa equals 1 acre in KPK and most of Punjab). The calculator handles any plot size and converts to acres automatically. For very large agricultural parcels with complex curved boundaries (canal-adjacent fields, sloped terrain), satellite-imagery measurement via apps like Google Earth Pro or proper GPS surveying gives more accurate totals than tape-measure methods — physical pacing simply breaks down past a certain scale.

Is my plot data saved anywhere?

No. Every calculation runs entirely in your browser using JavaScript — nothing transmitted, nothing logged, nothing stored. The side lengths and Marla-size preferences you enter stay completely private. Appropriate when you're punching in details of a plot you haven't yet purchased or are negotiating to sell, and would rather not have those numbers floating around on someone else's server.

Premium Converters

Plot Area Calculator (4-Sided)

Construction

Calculate plot area from four sides (North, South, East, West) in Marla, Kanal, and Acres.

Construction

Plot Area Calculator (4-Sided)

Generated on May 23, 2026

Plot Shape (top = North)

Preview — enter 4 sides

Input units

NNorth side (front/back)

feet

inches

SSouth side (front/back)

feet

inches

EEast side (left/right)

feet

inches

WWest side (left/right)

feet

inches

Marla size (for local conversion)

Plot Pricing — convert any rate to all others

What price do you know?

Per Marla rate (Rs)

Marla size used: 272 sq ft (1 Kanal = 5,440 sq ft; 1 Acre = 43,560 sq ft = 8.01 Kanal)

Quick Answer

Calculate plot area from four sides (North, South, East, West) in Marla, Kanal, and Acres.

Overview — Plot Area Calculator (4-Sided)

Construction

A plot area calculator estimates the total area of an irregular four-sided plot of land when you know the length of each of its four sides — typically labeled by compass direction (North, South, East, West). This is exactly the situation most Pakistani and South Asian property owners face: land-registry documents (Intiqaal, Fard Malkiat) list the four side lengths of a plot but rarely list the area directly. The tool is invaluable for homebuyers verifying a plot's claimed size, sellers preparing accurate listings, real-estate agents comparing properties, Patwari record verification, and property inheritance divisions where exact area determines each heir's share.

Formula

Approximate Area = ((North + South) ÷ 2) × ((East + West) ÷ 2) — the surveyor's averaging method.

5 Marla (1,360 sq ft) is the entry-level Pakistani plot — perfect for a 3-bedroom single-story family home.

10 Marla (2,720 sq ft) fits a spacious 4-bedroom double-story home with a small lawn and parking for two cars.

1 Kanal (5,440 sq ft) is the upper-middle-class luxury standard — lawn, separate servant's quarters, covered parking.

By Muhammad Salman SaleemUpdated: May 23, 2026MethodologyFree, no sign-upRuns in your browser — your data stays private

From the editors — what to know before you start

Most Pakistani plots are not perfect rectangles, and the moment you open the registry document (Fard or Intiqaal) you discover four side lengths that absolutely do not match — north 47 feet 4 inches, south 52 feet 7 inches, east 60 feet, west 58 feet 10 inches. The Patwari did not lie; the corners just are not 90 degrees, which is normal for any plot that was carved out of farmland decades ago or sits on a slight curve in the lane. The painful part is that four side lengths alone do not give you a single exact area — geometrically, the same four sides can flex into different quadrilateral shapes. So the standard surveyor's trick used across Pakistan is the averaging method: average the two opposite sides for length, average the other two for width, multiply like a rectangle. This calculator does that automatically and converts the result to square feet, square meters, Marla (with the size you pick — 272, 250, or 225 sq ft), Kanal, and acres. Honest take: for buying a plot, do this conversion before you visit, before you pay token money, and before you trust the dealer's number. If your calculated area is more than 5 percent off the listed area, walk into the Patwari office and demand a fresh demarcation — it is the cheapest insurance you will buy that month.

Pro tips most people learn the hard way

Most Pakistani plots are 'mostly rectangular' but with sides that differ by 5 to 10 percent — the averaging method handles those cleanly. If your opposite sides differ by more than 15 percent (one side is much longer than its opposite), the calculator flags it and you should commission a surveyor for legal precision.
Always pick the correct Marla size before reading the result. DHA, Bahria, and modern schemes use 272 sq ft. Some older Punjab and Karachi settlements use 250 or 225 sq ft. The wrong Marla setting will give you a number that does not match the registry — and that is a hard argument to win at the Patwari counter.
Built-up area, covered area, and plot area are three different things. The four sides you measure give plot area (the land). Covered area adds wall thickness — typically 10 percent more. Built-up area for sale brochures adds shares of stairs and common spaces. Always clarify which one the listing quotes.
If two dealers give you noticeably different sizes for the same plot, one is rounding charitably and the other is rounding cautiously. The registry document is the only authoritative answer — get a copy of the Fard before transferring any meaningful money.
For inheritance splits, plot area is the basis for each heir's share. Run the four sides through here, then divide proportionally according to the Warasat ruling — using the calculator's exact square-foot figure prevents the next-generation dispute that happens when one heir feels short-changed by a few Marla.

?What is the Plot Area Calculator (4-Sided)?

The Formula

Approximate Area = ((North + South) ÷ 2) × ((East + West) ÷ 2) — the surveyor's averaging method.

When only the four side lengths of a plot are known, there is no unique mathematical area — the same four sides can form infinitely many quadrilateral shapes, each with a slightly different area. The practical convention used by Pakistani Patwaris and property surveyors for approximately-rectangular plots is the averaging method: treat opposite sides as a matched pair, average them, and multiply the two averages like a rectangle. This gives an accurate area for plots that are 'mostly rectangular' (most urban residential plots). For highly irregular plots where opposite sides differ by more than 15%, the tool shows a warning because the approximation error grows — in those cases a surveyor should measure one diagonal and apply the triangulation method for legal precision.

Pakistani Residential Plot Sizes — Standard Reference Table

The most common residential plot sizes in Pakistan with all measurement equivalents. Based on the standard 272 sq ft Marla.

Plot Size	Square Feet	Square Meters	Square Yards	Kanal
3 Marla	816	75.81	90.67	0.15
5 Marla	1,360	126.34	151.11	0.25
7 Marla	1,904	176.88	211.56	0.35
8 Marla	2,176	202.15	241.78	0.4
10 Marla	2,720	252.69	302.22	0.5
14 Marla	3,808	353.77	423.11	0.7
15 Marla	4,080	379.04	453.33	0.75
1 Kanal (20 Marla)	5,440	505.39	604.44	1
2 Kanal	10,880	1,010.78	1,208.89	2
4 Kanal	21,760	2,021.57	2,417.78	4
1 Acre (8 Kanal)	43,560	4,046.86	4,840.00	8

Put It in Perspective

5 Marla (1,360 sq ft) is the entry-level Pakistani plot — perfect for a 3-bedroom single-story family home.

10 Marla (2,720 sq ft) fits a spacious 4-bedroom double-story home with a small lawn and parking for two cars.

1 Kanal (5,440 sq ft) is the upper-middle-class luxury standard — lawn, separate servant's quarters, covered parking.

A 4-sided irregular plot averaging 40 × 68 ft ≈ 10 Marla — use the calculator above for exact irregular measurements.

Practical Examples

A plot with sides 67, 42, 60, 72 ft gives an average length of 63.5 ft, average width of 57 ft, and area ≈ 3,619.5 sq ft — roughly 13.31 Marla (standard 272 sq ft system).

A 60 × 90 ft plot (equal opposite sides) is 5,400 sq ft — just under 1 Kanal (5,440 sq ft) in the 272 sq ft Marla system.

A 30 × 60 ft plot is 1,800 sq ft, or about 6.62 Marla — a typical 5-7 Marla residential plot in a Pakistani housing society.

A plot with sides 100, 95, 80, 85 ft has avg length 97.5 and avg width 82.5, giving 8,044 sq ft ≈ 29.57 Marla or about 1.48 Kanal.

A 180 × 100 ft plot equals 18,000 sq ft ≈ 66.18 Marla ≈ 3.31 Kanal ≈ 0.413 acres — the size of a luxury urban house.

A commercial corner plot with sides 45, 40, 60, 55 ft averages 42.5 × 57.5 = 2,444 sq ft ≈ 8.99 Marla — common shop-front sizing.

Frequently Asked Questions

Geometrically, four side lengths alone do not pin down a single quadrilateral — the same four sides can form infinitely many shapes. Picture "squishing" a square into a rhombus: all four sides stay the same length, but the area shrinks visibly. To get an exact area you need extra information — one diagonal, one angle, or a right-angle constraint. The averaging method used here is an approximation, but it works well for the mostly-rectangular plots that cover the vast majority of real Pakistani residential land. For pie-shaped or sharply angled plots, you'll want a surveyor with triangulation.

Popular Conversions

Jump to a ready-made conversion — useful for quick reference and sharing:

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Brick Calculator

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Square Footage Calculator

Calculate area from length and width and convert square feet to square metres, square yards, acres, Marla and Kanal for property, flooring and material estimates.

Plot Area Calculator (3-Sided / Triangular)

Calculate the exact area of a triangular plot from three side lengths using Heron's formula. Marla, Kanal, Acre.

Plot Area Calculator (5-Sided / Pentagonal)

Estimate the area of a 5-sided pentagonal plot from its five side lengths. Cyclic-polygon method.

Plot Area Calculator (6-Sided / Hexagonal)

Estimate the area of a 6-sided hexagonal plot from its six side lengths. Cyclic-polygon method with Marla, Kanal, Acre conversion.

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Premium Converters

Plot Area Calculator (4-Sided)

Construction

Calculate plot area from four sides (North, South, East, West) in Marla, Kanal, and Acres.

Construction

Plot Area Calculator (4-Sided)

Generated on May 23, 2026

Plot Shape (top = North)

Preview — enter 4 sides

Input units

NNorth side (front/back)

feet

inches

SSouth side (front/back)

feet

inches

EEast side (left/right)

feet

inches

WWest side (left/right)

feet

inches

Marla size (for local conversion)

Plot Pricing — convert any rate to all others

What price do you know?

Per Marla rate (Rs)

Marla size used: 272 sq ft (1 Kanal = 5,440 sq ft; 1 Acre = 43,560 sq ft = 8.01 Kanal)

Quick Answer

Calculate plot area from four sides (North, South, East, West) in Marla, Kanal, and Acres.

Overview — Plot Area Calculator (4-Sided)

Construction

Formula

Approximate Area = ((North + South) ÷ 2) × ((East + West) ÷ 2) — the surveyor's averaging method.

5 Marla (1,360 sq ft) is the entry-level Pakistani plot — perfect for a 3-bedroom single-story family home.

10 Marla (2,720 sq ft) fits a spacious 4-bedroom double-story home with a small lawn and parking for two cars.

1 Kanal (5,440 sq ft) is the upper-middle-class luxury standard — lawn, separate servant's quarters, covered parking.

By Muhammad Salman SaleemUpdated: May 23, 2026MethodologyFree, no sign-upRuns in your browser — your data stays private

From the editors — what to know before you start

Pro tips most people learn the hard way

Most Pakistani plots are 'mostly rectangular' but with sides that differ by 5 to 10 percent — the averaging method handles those cleanly. If your opposite sides differ by more than 15 percent (one side is much longer than its opposite), the calculator flags it and you should commission a surveyor for legal precision.
Always pick the correct Marla size before reading the result. DHA, Bahria, and modern schemes use 272 sq ft. Some older Punjab and Karachi settlements use 250 or 225 sq ft. The wrong Marla setting will give you a number that does not match the registry — and that is a hard argument to win at the Patwari counter.
Built-up area, covered area, and plot area are three different things. The four sides you measure give plot area (the land). Covered area adds wall thickness — typically 10 percent more. Built-up area for sale brochures adds shares of stairs and common spaces. Always clarify which one the listing quotes.
If two dealers give you noticeably different sizes for the same plot, one is rounding charitably and the other is rounding cautiously. The registry document is the only authoritative answer — get a copy of the Fard before transferring any meaningful money.
For inheritance splits, plot area is the basis for each heir's share. Run the four sides through here, then divide proportionally according to the Warasat ruling — using the calculator's exact square-foot figure prevents the next-generation dispute that happens when one heir feels short-changed by a few Marla.

?What is the Plot Area Calculator (4-Sided)?

The Formula

Approximate Area = ((North + South) ÷ 2) × ((East + West) ÷ 2) — the surveyor's averaging method.

Pakistani Residential Plot Sizes — Standard Reference Table

The most common residential plot sizes in Pakistan with all measurement equivalents. Based on the standard 272 sq ft Marla.

Plot Size	Square Feet	Square Meters	Square Yards	Kanal
3 Marla	816	75.81	90.67	0.15
5 Marla	1,360	126.34	151.11	0.25
7 Marla	1,904	176.88	211.56	0.35
8 Marla	2,176	202.15	241.78	0.4
10 Marla	2,720	252.69	302.22	0.5
14 Marla	3,808	353.77	423.11	0.7
15 Marla	4,080	379.04	453.33	0.75
1 Kanal (20 Marla)	5,440	505.39	604.44	1
2 Kanal	10,880	1,010.78	1,208.89	2
4 Kanal	21,760	2,021.57	2,417.78	4
1 Acre (8 Kanal)	43,560	4,046.86	4,840.00	8

Put It in Perspective

5 Marla (1,360 sq ft) is the entry-level Pakistani plot — perfect for a 3-bedroom single-story family home.

10 Marla (2,720 sq ft) fits a spacious 4-bedroom double-story home with a small lawn and parking for two cars.

1 Kanal (5,440 sq ft) is the upper-middle-class luxury standard — lawn, separate servant's quarters, covered parking.

A 4-sided irregular plot averaging 40 × 68 ft ≈ 10 Marla — use the calculator above for exact irregular measurements.

Practical Examples

A plot with sides 67, 42, 60, 72 ft gives an average length of 63.5 ft, average width of 57 ft, and area ≈ 3,619.5 sq ft — roughly 13.31 Marla (standard 272 sq ft system).

A 60 × 90 ft plot (equal opposite sides) is 5,400 sq ft — just under 1 Kanal (5,440 sq ft) in the 272 sq ft Marla system.

A 30 × 60 ft plot is 1,800 sq ft, or about 6.62 Marla — a typical 5-7 Marla residential plot in a Pakistani housing society.

A plot with sides 100, 95, 80, 85 ft has avg length 97.5 and avg width 82.5, giving 8,044 sq ft ≈ 29.57 Marla or about 1.48 Kanal.

A 180 × 100 ft plot equals 18,000 sq ft ≈ 66.18 Marla ≈ 3.31 Kanal ≈ 0.413 acres — the size of a luxury urban house.

A commercial corner plot with sides 45, 40, 60, 55 ft averages 42.5 × 57.5 = 2,444 sq ft ≈ 8.99 Marla — common shop-front sizing.

Frequently Asked Questions

Popular Conversions

Jump to a ready-made conversion — useful for quick reference and sharing:

Browse all Construction

Tile Calculator

Work out tile quantity for floors, walls, showers and backsplashes in sq ft or sq m, with adjustable wastage allowance for straight, diagonal and herringbone layouts.

Paint Calculator

Estimate paint in litres or gallons from room dimensions, coats and coverage, subtracting doors and windows — works for interior emulsion and exterior weather coats.

Concrete Calculator

Compute cement bags, sand and aggregate in m3 for slabs, footings, beams and columns using M15, M20 or M25 mix ratios with the 1.54 dry-volume factor.

Brick Calculator

Estimate bricks, mortar, cement bags and sand for a single wall or a 4-wall plot. Supports 22 brick & block standards, ft+in or metric input, openings deduction, and 2D + 3D visualizations.

Square Footage Calculator

Calculate area from length and width and convert square feet to square metres, square yards, acres, Marla and Kanal for property, flooring and material estimates.

Plot Area Calculator (3-Sided / Triangular)

Calculate the exact area of a triangular plot from three side lengths using Heron's formula. Marla, Kanal, Acre.

Plot Area Calculator (5-Sided / Pentagonal)

Estimate the area of a 5-sided pentagonal plot from its five side lengths. Cyclic-polygon method.

Plot Area Calculator (6-Sided / Hexagonal)

Estimate the area of a 6-sided hexagonal plot from its six side lengths. Cyclic-polygon method with Marla, Kanal, Acre conversion.

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See every tool in this category, plus FAQs and category-specific guides.

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Plot Area Calculator (4-Sided) — plot area from four sides (North | Premium Converters

Premium Converters

Premium Converters

Plot Area Calculator (4-Sided)

Plot Area Calculator (4-Sided)

Plot Pricing — convert any rate to all others

Overview — Plot Area Calculator (4-Sided)

From the editors — what to know before you start

Pro tips most people learn the hard way

?What is the Plot Area Calculator (4-Sided)?

The Formula

Pakistani Residential Plot Sizes — Standard Reference Table

Put It in Perspective

Practical Examples

Frequently Asked Questions

Popular Conversions

Embed this calculator on your site

Browse other categories

Premium Converters

Plot Area Calculator (4-Sided)

Plot Area Calculator (4-Sided)

Plot Pricing — convert any rate to all others

Overview — Plot Area Calculator (4-Sided)

From the editors — what to know before you start

Pro tips most people learn the hard way

?What is the Plot Area Calculator (4-Sided)?

The Formula

Pakistani Residential Plot Sizes — Standard Reference Table

Put It in Perspective

Practical Examples

Frequently Asked Questions

Popular Conversions

Embed this calculator on your site

Browse other categories

Premium Converters

Premium Converters

Plot Area Calculator (4-Sided)

Plot Area Calculator (4-Sided)

Plot Pricing — convert any rate to all others

Overview — Plot Area Calculator (4-Sided)

From the editors — what to know before you start

Pro tips most people learn the hard way

?What is the Plot Area Calculator (4-Sided)?

The Formula

Pakistani Residential Plot Sizes — Standard Reference Table

Put It in Perspective

Practical Examples

Frequently Asked Questions

Why is four sides not enough to get an exact area?

How accurate is the surveyor's averaging method?

What is the difference between Marla and Kanal?

Which Marla size should I use?

How do I measure the four sides of my plot?

What if my plot has more than four sides?

Why does my calculated area differ from the plot's listed area?

Is this accurate enough for a property purchase decision?

What is a 'regular' vs 'irregular' plot?

Can I use this for agricultural land?

Is my plot data saved anywhere?

Popular Conversions

Embed this calculator on your site

More Construction Tools

Browse other categories

Premium Converters

Plot Area Calculator (4-Sided)

Plot Area Calculator (4-Sided)

Plot Pricing — convert any rate to all others

Overview — Plot Area Calculator (4-Sided)

From the editors — what to know before you start

Pro tips most people learn the hard way

?What is the Plot Area Calculator (4-Sided)?

The Formula

Pakistani Residential Plot Sizes — Standard Reference Table

Put It in Perspective

Practical Examples

Frequently Asked Questions

Why is four sides not enough to get an exact area?

How accurate is the surveyor's averaging method?

What is the difference between Marla and Kanal?

Which Marla size should I use?

How do I measure the four sides of my plot?

What if my plot has more than four sides?

Why does my calculated area differ from the plot's listed area?

Is this accurate enough for a property purchase decision?

What is a 'regular' vs 'irregular' plot?

Can I use this for agricultural land?

Is my plot data saved anywhere?

Popular Conversions

Embed this calculator on your site

More Construction Tools

Browse other categories