Free Civil Engineering Calculators for Every Project
Fast, accurate calculators for concrete, steel, brickwork, RCC design, excavation, cost estimation and more — with instant results, multi-currency support, and no sign-up required.
Civil Engineering Unit Converter – Length, Area & Volume
Use the unit converter to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Scientific Calculator – Trigonometry, Logs, Powers & More
Use the scientific calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Land Area Calculator – Plot Area & Irregular Land Measurement
Use the land area plotter to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Geometric Properties Calculator – Area, Centroid & Moment of Inertia
Use the geometric properties calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Beam Analysis Calculator – Shear, Bending Moment & Deflection
Calculate maximum shear, bending moment and approximate deflection for common simply supported and cantilever beam load cases.
FAR & Building By-Laws Analyzer – Carpet & Built-Up Area
Use the by-laws analyzer to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Excavation Calculator – Earthwork Volume & Dumper Trips
Use the excavation work calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Tank Volume Calculator – Water Capacity in Litres & m³
Use the tank volume calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Bar Bending Schedule Calculator – BBS Cutting Length & Steel Weight
Prepare a preliminary Bar Bending Schedule with bar shapes, dimensions, cutting lengths, quantities and reinforcement weight.
Cement Concrete Calculator – Cement, Sand & Aggregate Quantity
Calculate concrete volume and approximate cement, sand and aggregate quantities from dimensions and selected mix assumptions.
Brick Calculator – Bricks, Mortar Quantity & Brickwork Estimate
Calculate wall volume, approximate brick quantity and mortar requirements from wall dimensions, brick size, joint thickness and wastage assumptions.
Plastering Calculator – Cement & Sand Quantity for Plaster
Estimate plaster area, cement and sand quantities using wall dimensions, plaster thickness and mortar mix ratio.
Flooring & Tile Calculator – Tiles Required & Wastage
Use the flooring & tile calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Paint Calculator – Wall Area, Coats & Paint Quantity
Use the paint work calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Steel Weight Calculator – Rebar Weight per Meter & Total Weight
Calculate reinforcement steel weight from bar diameter, length and quantity. Quickly estimate kg per metre and total steel weight.
Wood Framing Calculator – Studs & Plate Length Estimate
Use the wood framing calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Home Electrical Calculator – Wiring, Conduit & MCB Estimation
Use the home electrical calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Sanitary & Plumbing Calculator – Water Demand & Pipe Estimate
Use the sanitary & plumbing calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
HVAC Sizing Calculator – AC Tonnage & Cooling Load Estimate
Use the hvac sizing calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Solar Sizing Calculator – Rooftop PV Capacity & Panel Estimate
Use the solar sizing calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
RCC Column & Footing Calculator – Concrete, Steel & Tie Estimate
Estimate RCC column concrete volume, vertical reinforcement, lateral ties and isolated footing volume from basic dimensions.
Slab Reinforcement Calculator – One-Way & Two-Way Slab Steel
Estimate preliminary slab type, effective depth, concrete volume and reinforcement requirements from slab dimensions and bar spacing.
Development Length Calculator – RCC Rebar Development & Lap Length
Estimate reinforcement development length and lap length using concrete grade, steel grade, bar diameter and tension/compression state.
Shuttering Area Calculator – Formwork Area & Plywood Estimate
Use the shuttering area calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Scaffolding Estimator – Pipes, Couplers & Base Plates
Use the scaffolding estimator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Asphalt & Bitumen Calculator – Prime, Tack Coat & Mix Quantity
Use the asphalt & bitumen calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Sub-base Material Calculator – GSB & WMM Quantity
Use the sub-base material calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Soil Bearing Capacity Calculator – Terzaghi & SPT Estimate
Use the soil bearing capacity calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Slope Stability Calculator – Preliminary Earth Slope Assessment
Use the slope stability calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Rainwater Harvesting Calculator – Roof Yield & Tank Sizing
Use the rainwater harvesting sizer to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Septic Tank & Soak Pit Calculator – Preliminary Sizing
Use the septic tank & soak pit sizer to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Project Schedule Calculator – WBS, Tasks & Gantt Planning
Use the project schedule calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Construction Cost Calculator – Estimate Building Cost per Sq Ft
Estimate building construction cost using built-up area, location, construction quality and current project rates. Get a preliminary budget quickly.
Labour & Man-Days Calculator – Construction Manpower Estimate
Use the labour & man-days calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Mini BOQ Builder – Bill of Quantities & Cost Estimate
Use the mini boq builder calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.
Anti-Termite Calculator – Pre-Construction Chemical Quantity
Use the anti-termite calculator to perform a quick preliminary calculation from project dimensions and engineering assumptions. Review inputs and verify final results against project requirements.