Draw any plot or shape — get exact area in Marla, Kanal, sq ft & 20+ units.
Free online land area calculator for plots, fields, and rooms. Draw any irregular polygon or pick a standard shape — get instant area results in Marla, Kanal, acres, sq ft, sq m and 20+ units. No sign-up needed.
TrueTimeKeeper's free land area calculator is built for anyone who needs to measure a plot, field, or room quickly and accurately — without GPS equipment or specialist software. Whether you are a homebuyer in Pakistan checking a Marla or Kanal plot, a farmer in India measuring agricultural land in Bigha or acres, an architect calculating floor area, or a homeowner estimating room size for tiling — this tool gives you exact results in seconds.
Use Free Draw mode to tap each corner of your irregular plot and enter side lengths — the Shoelace Formula computes the exact area. Use Simple Shape mode for standard shapes: square, rectangle, triangle, circle, ellipse, parallelogram, trapezoid, rhombus and hexagon. Results convert instantly into Marla, Kanal, acres, hectares, sq ft, sq m and 20+ more units — or use the dedicated length & area unit converter for standalone conversions. No sign-up or installation required. Works on any mobile or desktop browser.
Irregular plots — L-shaped land, trapezoidal fields, odd-corner residential plots — cannot be measured with a single formula. The standard method used by professional surveyors is the Shoelace Formula (Gauss's area formula), which works for any polygon whose boundary does not cross itself. To use it: tap each corner of your plot in order, enter the measured length of each side, and the calculator returns the exact area. For triangular plots, Heron's Formula is applied automatically. Supports polygons from 3 corners up to 10+ corners.
This is the same algorithm used in GPS mapping applications and professional land surveying software. It gives mathematically exact results — not estimates — when the correct side lengths are entered. It is also the recommended method if you want to calculate the area of an irregular plot in Pakistan without a surveyor visit.
For standard rectangular or circular plots and rooms, use Simple Shape mode. Enter just the dimensions — no drawing required. Each shape applies its exact geometric formula:
Square: side². Rectangle: length × width. Triangle: ½ × base × height. Circle: π × radius². Ellipse: π × a × b. Parallelogram: base × height. Trapezoid: ½ × (a + b) × height. Rhombus: ½ × d1 × d2. Hexagon: (3√3 / 2) × side².
Once you have your area result, you can convert it directly inside this calculator — or open the dedicated length & area converter to compare units side by side without needing to draw a plot first.
1 Marla = 272.25 sq ft = 25.293 m². 1 Kanal = 20 Marla = 5,445 sq ft = 505.857 m². 1 Acre = 8 Kanal = 160 Marla = 43,560 sq ft. 1 Murabba = 25 Acres = 200 Kanal.
These units are the standard for residential and agricultural land in Pakistan, and in the Punjab and Haryana regions of India. Common plot sizes — 5 Marla, 10 Marla, 1 Kanal — are all supported directly in the unit converter.
1 Hectare = 10,000 m² = 2.471 acres. 1 Bigha (UP) = 2,529 m² = 0.625 acres. 1 sq yard (Gaj) = 9 sq ft = 0.836 m². 1 Ground (South India) = 222.97 m².
The calculator also supports sq mm, sq cm, sq km, sq inch, and Biswa — covering land measurement needs across Pakistan, India, Bangladesh, and international markets. Explore all available tools on the TrueTimeKeeper tools page. Use it for plot area calculations, agricultural field measurements, room and floor area calculations, and pre-purchase land comparisons.
1 Kanal = 20 Marla. 1 Acre = 8 Kanal = 160 Marla. These are the standard units used in Pakistan and Punjab, India for residential plot sizes.
Use Free Draw mode — tap each corner of your plot on the canvas in sequence and enter the measured length of each wall. The Shoelace Formula calculates the exact area and converts it to Marla, Kanal, or any other unit automatically.
Use Free Draw mode and tap each corner of the L-shape in sequence (typically 6 corners for a standard L). Enter each wall length and the calculator handles the rest. The Shoelace Formula works for any non-self-crossing polygon, including L-shapes, T-shapes, and other complex boundaries.
5 Marla = 5 × 272.25 = 1,361.25 sq ft. A standard 5 Marla plot is one of the most common residential plot sizes in Pakistan.
10 Marla = 10 × 25.293 = 252.93 m². In sq ft, 10 Marla = 2,722.5 sq ft.
1 Kanal = 5,445 sq ft = 505.857 m² = 20 Marla. It is commonly used for larger residential and commercial plots in Pakistan and Punjab.
It gives mathematically exact results for any non-self-intersecting polygon when the correct side lengths are entered. The same algorithm is used in GPS-based land surveying tools and GIS applications worldwide.
Yes. Use Rectangle mode for standard square rooms. Use Free Draw for L-shaped rooms, open-plan spaces, or any irregular floor plan. Results can be converted to sq ft or sq m instantly — useful for flooring, tiling, and carpet estimates. For quick unit-only conversions without drawing, try the area unit converter.
Tap each corner of your plot or room
Tap the first dot again to close shape