Home / Engineering Tools
Free Calculators & Tools
House cost, home owner calculators, material estimators, survey tools and laboratory test sheets — made by Kataria Engineering's engineers for Pakistan's units and practice.
Cost estimators
Priced with today's material rates in Mirpur AJK.
Detailed BOQ Estimator NewItem-wise bill of quantities for your house, from excavation to finishing, with a PDF BOQ.
Quick Cost CalculatorInstant cost per sq ft and per marla for houses and commercial buildings.
Gantt Chart & Primavera P6 Scheduler NewConstruction programme with critical path, S-curve and P6 / MS Project export.Learning Hub for Students NewFormula sheet, rebar tables, ASTM/BS/IS equivalents, EPE practice test, FYP ideas.Free CAD Blocks (DXF) NewDoors, beds, sanitary, car, stair and footing details for AutoCAD.Today's Material PricesCement, steel, bricks, sand and crush rates — updated daily.
Home Owner Calculators
Simple calculators for families planning to build: house cost, adding a floor, boundary wall, septic tank, home loan and rent vs build.
How Much Will My House Cost?How much does it cost to build a 5 marla, 10 marla or 1 kanal house in Mirpur AJK and Punjab? Free calculator with…Cost to Add a FloorHow much does it cost to build a first or second floor on an existing house? Free calculator with today's prices in…Boundary Wall CostCost of a boundary wall for your plot: bricks, cement, sand, steel and labour for 4½″, 9″ or 13½″ walls with columns…Septic Tank SizeWhat size septic tank do you need? Length, width, depth and capacity for 5 to 50 people, with soakage pit size — for…Home Loan InstalmentCalculate the monthly instalment of a house construction loan or home finance in Pakistan: loan amount, profit rate and…Rent or Build?Is it better to keep renting or build your own house? Compare the rent you will pay over the years with the cost of…House Paint CostHow much does it cost to paint a house in Pakistan? Paint area and cost for inside emulsion and outside weather shield…Solar System Size & SavingsWhat size solar system do you need, how much will it cost and how fast does it pay back? Calculator for on-grid and…Kitchen & Bathroom RenovationCost to renovate a kitchen or bathroom in Mirpur AJK with A+ finishes — cabinets, quartz counters, imported tiles…Compare Two QuotationsGot two contractor quotations? Compare them item by item, spot missing items and see how they stand against a benchmark…Room Size PlannerList the rooms you want, check each against practical minimum sizes and find out how big a plot you need for your house.
Quotations & Payment Planning
Instant quotations for our design and survey services, and stage-wise payment plans for your construction.
Instant QuotationGet an instant quotation for topography survey, soil investigation, architectural and structural design, interior…Payment Plan CalculatorPlan stage-wise construction payments for your house: amount and month of each instalment, cumulative payments, and…Construction Time PlannerHow many months to build a 5 marla, 10 marla or 1 kanal house in Pakistan? Stage-by-stage construction timeline with…Earned Value (Progress)Track project progress and cost: PV, EV, AC, SPI, CPI and estimate at completion.Contractor Bid ComparisonCompare up to three contractor quotations item by item and find the lowest total.Covered Area & FARAllowed ground coverage, total floor area and number of floors from setbacks and FAR.Parking RequirementNumber of car spaces and parking area for shops, offices, apartments, halls and hospitals.Instalment PlanPlan your house construction payments: down payment, equal monthly instalments over 12–18 months and the balance at…
Material Calculators
Quantities and cost of bricks, cement, sand, crush, steel, tiles and paint — priced with today's rates in Mirpur AJK.
Brick CalculatorHow many bricks, cement bags and sand for your wall? Free brick masonry calculator for 4½″, 9″ and 13½″ walls with…Concrete Block CalculatorCalculate concrete blocks, cement and sand for a block wall. Hollow and solid blocks in 4″, 6″ and 8″ sizes with ⅜″…Plaster CalculatorFree plaster calculator: cement bags and sand for ½″ internal, ¾″ external and ceiling plaster in 1:3, 1:4 and 1:6…Concrete CalculatorCement, sand, crush, water and steel for slabs, beams, columns and footings. Nominal mixes 1:1.5:3, 1:2:4, 1:3:6 and…Steel Weight CalculatorWeight of steel bars #3 to #10 and 10–25 mm in kg per foot and per metre, total kg and tons, and cost at today's Grade…Tile CalculatorHow many tiles do I need? Enter your rooms and tile size (1×1, 2×2, 2×4 ft and more) to get tiles, boxes, adhesive…Paint CalculatorHow much paint do you need? Wall and ceiling area, coats and paint type give the litres and gallons of emulsion…Excavation CalculatorExcavation volume for foundations, trenches and basements in cft, m³ and cubic yards, with soil swell and…Water Tank CalculatorCapacity of rectangular and round water tanks in gallons and litres, and the tank size you need for your family.Marla & Kanal ConverterConvert marla, kanal, square feet, square yards, square metres, acres and sarsai. Supports 225, 250 and 272.25 sq ft…Staircase CalculatorHow many steps for an 11 ft floor? Riser height, tread, space needed and concrete for straight and dog-leg staircases.RCC Roof SlabMaterials and cost of an RCC roof slab with beams: cement bags, sand, crush, steel and shuttering at today's prices.Floor PCC / ScreedCement, sand and crush for floor PCC and screed in 1:2:4 or 1:4:8.Marble & Granite CostMarble flooring, stairs and granite kitchen counter cost with typical 2026 Pakistani rates.False Ceiling CostCost of gypsum, POP, PVC and wooden false ceilings per room with LED cove, at typical Pakistani rates.Waterproofing CostHow much does roof or bathroom waterproofing cost? Coating gallons, labour and cost per sq ft.Doors & Windows CostCost of wooden, laminated and PVC doors and uPVC or aluminium windows for a house.Electrical Wiring CostElectrical BOQ for a house: conduit, fan & light boxes, wire coils, switch boards, DB, breakers, fans, lights and…Plumbing & Sanitary CostPlumbing BOQ for a house: PPR water lines, PVC drainage, traps, manholes, sanitary ware, geysers, pump and plumber…Tile Adhesive & GroutHow many bags of tile adhesive and packets of tile filler do I need? Enter the area, tile size and joint width.Bathroom Tile CalculatorTiles for bathroom floors and walls: number of tiles, sqm to buy, adhesive bags, grout packets and total cost.Labour CostGrey structure and finishing labour cost for a house per sq ft.Rate AnalysisRate analysis per 100 cft or 100 sq ft: materials at today's prices, labour, overheads and profit.
Soil Test Calculators
Lab and field soil tests with automatic charts and soil classification — for engineers, students and site staff.
Moisture ContentWater content of soil by oven drying: enter can, wet and dry masses for several trials to get the moisture content and…Specific GravitySpecific gravity of soil solids by the pycnometer method with temperature correction to 20 °C.Sieve Analysis of SoilGrain size analysis of soil with automatic gradation curve, D10, D30, D60, Cu, Cc, gravel–sand–fines and USCS…Atterberg Limits (LL, PL, PI)Liquid limit from the flow curve at 25 blows, plastic limit, plasticity index and soil class (CL, CH, ML, MH) from the…Proctor Compaction (MDD & OMC)Standard and Modified Proctor: dry density of each point, compaction curve, maximum dry density, optimum moisture…Field Density (Sand Cone / Core Cutter)In-place dry density and degree of compaction by sand cone or core cutter, checked against the Proctor MDD and your…CBR TestCalifornia Bearing Ratio from load–penetration readings: CBR at 2.5 and 5.0 mm, load–penetration curve, swell and…SPT & Bearing CapacityCorrect field SPT N to N60 and (N1)60 and get the allowable bearing pressure for a footing (Meyerhof, 25 mm settlement)…Plate Load TestPlate load test: draw the pressure–settlement curve and find the safe bearing pressure of a footing for an allowed…Direct Shear TestDirect shear box test: normal and shear stresses, failure envelope, cohesion c and angle of internal friction φ.Unconfined Compression (UCS)Unconfined compressive strength of clay: corrected area, qu, undrained shear strength cu and consistency.Consolidation & SettlementCompression index Cc from the e–log p curve, coefficient of consolidation cv (Taylor) and consolidation settlement of a…Permeability TestCoefficient of permeability k of soil from constant head (sand) or falling head (silt, clay) tests, in cm/s, m/s and…Relative DensityRelative density Dr of sand from maximum, minimum and field dry density, with density description.Free Swell IndexFree swell index of soil and degree of expansiveness — find out if your plot has swelling clay.Soil Classification (USCS)Classify soil to the Unified Soil Classification System (GW, SP, SM, CL, CH…) from grading and Atterberg limits.Triaxial TestTriaxial test results: Mohr circles, failure envelope, cohesion and friction angle (total or effective).Hydrometer AnalysisHydrometer test (152H): particle size, % finer, clay and silt content with grading curve.Bearing Capacity (Meyerhof / Hansen / Vesic)Ultimate and allowable bearing capacity of shallow foundations with shape and depth factors.Pile CapacityAllowable capacity of a single pile in clay (α-method) or sand (β-method).Slope StabilityFactor of safety of a slope with seepage by the infinite slope method — for hill cuts and embankments.Earth Pressure (Rankine / Coulomb)Active and passive earth pressure coefficients and thrust on retaining walls.
Concrete, Brick & Steel Tests
Concrete, brick, block and steel strength, ACI mix design and aggregate quality tests with standard limits checked for you.
Compressive StrengthCompressive strength of concrete cubes and cylinders in MPa and psi from the crushing load, with acceptance check…Concrete Mix Design (ACI)ACI 211.1 concrete mix design: water, cement, sand and crush per m³ and per bag from f′c, slump, aggregate size and…Aggregate Sieve & FMSand and crush grading with fineness modulus and an automatic check against ASTM C33 limits, with grading curve and…Aggregate Impact ValueAggregate impact value from the mass passing 2.36 mm, with toughness rating and limits for wearing surfaces and…Aggregate Crushing ValueAggregate crushing value from the fines produced under 400 kN load, with limits for surfacing and concrete.Los Angeles AbrasionLos Angeles abrasion loss of coarse aggregate with ASTM gradings A–D and limits for concrete and road layers.Specific Gravity & AbsorptionBulk (oven-dry and SSD) and apparent specific gravity and water absorption of coarse and fine aggregates.Slump TestRecord the slump of fresh concrete, check it against the specified range and see the workability.Flakiness & ElongationFlakiness index and elongation index of coarse aggregate with combined value checked against your limit.Bulk Density & VoidsLoose and rodded bulk density of sand and aggregate in kg/m³ and kg/cft, and percentage voids.Silt Content of SandQuick field test of silt in sand for concrete and plaster, with the 8% limit.Cement Setting TimeRecord Vicat initial and final setting time, normal consistency and fineness of cement and check ASTM C150 limits.Strength Acceptance (ACI 318)Check concrete cylinder or cube results against ACI 318: averages of 3 consecutive tests and lowest individual test.Ultrasonic Pulse VelocityPulse velocity of concrete from path length and transit time, graded excellent / good / medium / doubtful.Water AbsorptionWater absorption of bricks, concrete blocks, tiles and concrete with common limits.Brick StrengthBrick compressive strength in MPa and psi with IS 1077 class and ASTM C62 grade.Block StrengthNet-area compressive strength of hollow and solid concrete blocks against ASTM C90.Rebar Tensile TestYield strength, tensile strength and elongation of steel bars checked against ASTM A615 Grade 40 and 60.Rebar Weight CheckCheck if steel bars are underweight: actual kg/m against standard d²/162 with the 6% tolerance.Rebound HammerEstimate concrete strength from Schmidt rebound hammer readings, with outlier removal and calibration.Durability TestsClassify concrete by water penetration depth, chloride permeability (RCPT) and drying shrinkage.
Structural Quick Checks
Preliminary sizes for beams, slabs and columns, bar bending schedules and design loads — to plan before the structural design.
Beam Size CalculatorPreliminary RCC beam size from span and support condition: minimum depth per ACI 318 Table 9.3.1.1, suggested width and…Slab Thickness CalculatorMinimum RCC slab thickness for one-way, two-way and flat slabs from the spans, per ACI 318 — with practical sizes for…Column Size CalculatorPreliminary RCC column size from tributary area, number of floors and loads, with steel area and bar suggestion (ACI…Bar Bending Schedule (BBS)BBS calculator: cutting length of straight, L, U, cranked bars and stirrups with bend deductions, total length, weight…Load CalculatorDead, live and factored floor loads (1.2D + 1.6L) for houses, offices, shops and masjids, plus beam line load, moment…Footing SizeSize an isolated column footing from column load and soil bearing pressure, with thickness and bottom steel.Retaining Wall CheckCheck a cantilever retaining wall for overturning, sliding and soil pressure using Rankine earth pressure.Lintel SizeDepth and steel bars for a lintel over doors and windows.Balcony / Cantilever SlabThickness and top steel for a balcony or chajja cantilever slab.Beam DeflectionDeflection of an RCC beam under uniform load compared with L/240 and L/360 limits.SFD & BMDDraw shear force and bending moment diagrams for simply supported and cantilever beams with point loads and UDL.Continuous BeamSupport moments, reactions and span moments of a continuous beam with UDL on each span.Truss AnalysisForces in every member of a plane truss, tension or compression, and support reactions.Section PropertiesArea, centroid, moment of inertia, section modulus and radius of gyration of rectangle, T, I, box and circular sections.RCC Beam Design (ACI)Design a reinforced concrete beam to ACI 318: steel area, bars, and stirrup spacing.RCC Slab DesignThickness and steel of one-way and two-way RCC slabs.Column Interaction DiagramP–M interaction diagram of a rectangular RCC column and check of factored loads.Development & Lap LengthDevelopment length, lap splice length and hook length of steel bars.Steel Beam (AISC)Select the lightest W-section for a simply supported steel beam by strength and deflection.Bolted ConnectionShear and bearing capacity of bolted steel connections (A325 / A490, 8.8 / 10.9).Steel Roof Truss / ShedPreliminary angle sizes for steel roof trusses and purlins for sheds and warehouses.Combined FootingSize a rectangular combined footing for two columns: length, width, thickness, shear and moment diagrams and…Wind LoadCalculate wind pressure and storey forces on a building from the basic wind speed, exposure and building size.Seismic Base ShearFind the seismic base shear and storey forces of a building by the equivalent lateral force method.Steel Shed PurlinFind the required section modulus and moment of inertia of roof purlins for a steel shed, or check a purlin from the…
Road & Bitumen Tests
Bitumen grading, Marshall mix design and pavement thickness from CBR — for road works and access roads.
Bitumen TestsCheck bitumen against 40/50, 60/70 or 80/100 grade: penetration, ring-and-ball softening point, ductility and flash…Marshall Mix DesignMarshall test: bulk specific gravity, air voids, VMA, VFA, stability and flow checked against MS-2 criteria.Pavement Thickness (CBR)Total flexible pavement thickness from subgrade CBR and wheel load, with suggested asphalt, base and subbase layers.
Survey & Land Tools
Plot area in marla and kanal, area from coordinates, cut & fill, slopes and unit converters.
Plot Area (Sides + Diagonal)Find the exact area of an irregular plot in sq ft, marla and kanal from its four sides and one diagonal.Area from CoordinatesArea and perimeter of land from survey coordinates, in sq ft, m², marla, kanal and acre.Cut & Fill VolumeCut and fill volume of a plot from grid levels and the finished level, with truck loads of fill.Slope & GradientGradient in percent, 1:n ratio and degrees from two levels and the distance.Land Unit ConverterConvert marla, kanal, acre, sarsai, square feet, square yards, square metres and hectares — with 225 and 272.25 sq ft…Engineering Unit ConverterConvert force, pressure, length, volume and weight units used in construction: kN, ton, psi, MPa, kg/cm², cft, maund.Levelling (Rise & Fall)Reduced levels from a levelling field book by the rise and fall method, with arithmetic check.Traverse (Bowditch)Latitudes, departures, closing error, precision and adjusted coordinates of a closed traverse.Curve Setting OutTangent, curve length, chainages and deflection-angle table for setting out a road curve.TacheometryHorizontal distance and reduced level from stadia readings and vertical angle.
Water & Hydraulics
Open channel and drain design, pipe head loss, storm runoff and water demand.
Open Channel Flow (Manning)Discharge and velocity in rectangular, trapezoidal channels and pipes flowing full.Pipe Head LossHead loss, velocity and pressure drop in water supply pipes.Storm RunoffPeak storm water runoff for drains and culverts from area, runoff coefficient and rainfall intensity.Water DemandAverage, maximum day and peak water demand and storage for a population.
Highway & Traffic
Sight distance, horizontal curves, signal timing and road capacity.
Stopping Sight DistanceStopping sight distance for a design speed and grade.Horizontal Curve & SuperelevationMinimum radius, curve elements, superelevation and widening for road curves.Signal Timing (Webster)Optimum cycle length and green splits for a signalised junction.Traffic FlowRoad capacity, speed and flow from free-flow speed and jam density.
Research & Data
Statistics of test results, outlier checks and curve fitting for lab and research data.
Test Result StatisticsMean, standard deviation, coefficient of variation, characteristic value and Grubbs outlier test for lab results.Graph & Curve FittingFit a curve to your data, get the equation and R², and download the graph.SPT CorrelationsCorrect field SPT N to N60 and (N1)60 and estimate friction angle, relative density, undrained strength, Es and…CBR → Mr & k-valueConvert CBR to resilient modulus (AASHTO 1993 and MEPDG) and modulus of subgrade reaction k, and get CBR from a DCP…Compression Index CorrelationsEstimate the compression index from liquid limit, void ratio and water content, plus Cr and the Skempton cu/σ′v ratio.
Every tool gives a free PDF: a quotation, BOQ, estimate or test report. Your entries stay on your device. Need certified lab testing, design or construction? Contact our engineers.
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