Twenty calculators for measuring land, pricing materials and checking quantities before you order. Free, no sign-up, and written to work in any country — no currency is assumed and no price is hard-coded.
This is a set of working calculators for the questions that come up while you are measuring a plot, planning a build or standing in a builders' yard. Each one takes the dimensions you actually have — a plot's front and back widths, a wall's height, a room's floor area — and returns the quantity you need to order, in the units you think in.
Two things shape how they are written. The first is that these tools are not tied to one country. Every cost field is a plain unit price: you enter the price in your own currency and read the total back in the same one, and nothing on the page assumes dollars, pounds, rupees or euros. Material densities, mix ratios and wastage allowances are stated openly rather than buried, so you can substitute your own local figures where they differ.
The second is that estimates are labelled as estimates. A calculator can tell you how much concrete fits in a footing; it cannot tell you how much your ground will absorb, or whether your engineer will specify a richer mix. Where a number depends on a supplier's packaging — the coverage on a roll of roofing underlayment, the area in a box of tiles — the tool asks you for that figure instead of inventing one. Several of the pages explain where a calculation stops being reliable, which is usually more useful than a falsely precise answer.
Convert between square feet, square metres, acres, hectares and the South Asian land units, or measure an area from its dimensions.
Convert any area into eleven units at once, including marla and kanal.
Area & LandSquare footage for rectangles, circles, triangles and trapezoids, with a cost estimate.
Area & LandWork out land area in acres, hectares, marla and kanal from a simple measurement.
Area & LandPlot area in marla, kanal and square feet — plus the perimeter for boundary walls.
Area & LandConvert ft² to m² with the exact factor and a reference table.
Area & LandConvert m² to ft² with the exact factor and a reference table.
Area & LandConvert acres to hectares with the exact factor and a land reference table.
Area & LandConvert hectares to acres with the exact factor and a land reference table.
Work out how much concrete, brick, sand, aggregate or gravel a job needs before you order it.
Slabs, footings, columns and stairs — volume plus bags of cement, sand and aggregate.
Construction MaterialsBricks for a wall of any size and thickness, plus the mortar and cement for laying them.
Construction MaterialsGravel, crushed stone and river rock — volume in yd³ and weight in tonnes.
Tiles, paint and flooring — the finishing materials where an over-order is money left in the garage and an under-order is a second delivery.
Floor and wall tiles by the box, with grout joints and cutting waste included.
Flooring & WallsLitres or gallons per room, with doors, windows and coats deducted properly.
Flooring & WallsLaminate, vinyl and hardwood boxes for a room, plus underlayment rolls.
Roof area, pitch, squares, shingle bundles and ridge length for gable, hip, shed and flat roofs.
Fencing, posts, pickets and boundary-works quantities for the outside of the property.
Marla and kanal conversions for buyers, sellers and anyone reading a title deed. Every tool lets you choose which marla standard applies.
The conversion itself, with a table of the plot sizes buyers actually ask about.
Pakistan Land UnitsA measured area read back into marla, compared across all three standards.
Pakistan Land UnitsThe 20-marla relationship, for larger parcels priced by the kanal.
Each calculator takes your measurements, converts them to a single base unit — feet for length, square feet for area, cubic feet for volume — and works from there. That is why the unit badge next to every input matters: entering 3 metres where the tool expects 3 feet gives an answer that is wrong by a factor of ten, and the arithmetic will not warn you.
A waste allowance is applied to material quantities, and you control it. The default differs by material because materials differ: cutting tiles produces more offcuts than pouring concrete produces spillage. Leave it at the default if you are unsure, and raise it for a room with awkward corners, several doorways, or a diagonal layout.
A calculator is arithmetic. It knows nothing about your site. It cannot know that your sub-base is soft, that the ground falls away across the plot, that the merchant only sells rebar in fixed lengths, or that your local code requires a richer concrete mix than the one you picked.
So use these figures to plan and to sanity-check a quotation, not to replace a site visit or an engineer's specification. Where a tool's result depends on a supply assumption, the page says so and the note under the results repeats it. If a number matters enough to argue about, it matters enough to check against a real measurement.
Three unit families appear across the hub, and you can switch freely between them on any input. Imperial — feet, square feet, cubic yards, cubic feet — dominates construction in the United States, the United Kingdom and much of the Commonwealth. Metric — metres, square metres, cubic metres — is the standard almost everywhere else and is what engineering drawings use. South Asian land units — marla and kanal — are how residential plots are bought and sold in Pakistan and parts of northern India, and they appear in their own section below.
Mix units within one calculation if that matches reality. Surveying a plot in feet while ordering concrete in cubic metres is ordinary, and the calculators handle it: each input carries its own unit selector, and the results come back in every unit that matters for that quantity.
An acre is always 43,560 square feet and a hectare is always 10,000 square metres — those are fixed by definition. A marla is not. The traditional revenue standard is 272.25 square feet, many modern housing societies sell on 250 square feet, and several regions and older schemes use 225.
The difference is not academic. A plot advertised at 10 marla is 2,722.5 square feet on one standard and 2,250 on another — more than 20% of the land, for the same three words. So every tool here that touches marla asks which standard applies, and kanal follows from your answer, because a kanal is always 20 marla. That single rule is applied across the whole hub, which means no two calculators on this site can give you a different answer for the same plot.
Al Sadat Builders is a construction contractor based in Islamabad, Pakistan, led on site by Syed Mujtaba Shah. These calculators are free to use wherever you are — they print no currency and assume no country. If you are building in Islamabad, Rawalpindi or Bani Gala, we can survey the plot, price the job and hand you an itemised BOQ.