Construction Calculators

Professional tools for quick material calculations. Choose a calculator and get started.

Plan the whole job – floor to ceiling – Pick a bathroom, bedroom, living room or kitchen: screed, self-leveller, floor covering with laying pattern, skim coat and paint in one list.

Plan the whole job – bathroom – Enter the room size once and get levelling compound, floor and wall tiles, adhesive, grout and levelers in one list.

Floors and tiles

Ceramic Tiles – Calculate tile, adhesive and grout quantities
2D Flooring Layout Planner – 2D layout of tiles, laminate, vinyl and parquet in a room: laying pattern, herringbone, cuts, waste and number of packs, with a PDF plan.
Levelers – Calculate clips and wedges for leveling
Self-Leveling Compound – Calculate self-leveling compound for floors
Stone carpet calculator – Natural stone and PU binder for a stone carpet by area, layer thickness and ratio
Epoxy floor calculator – Primer, epoxy paint, quartz, chips and topcoat for the chosen system and area, with pack sizes
Decking calculator – Boards, substructure and fasteners with a cutting layout and 2D plan
Underfloor heating – Pipe layout, circuits, pipe lengths, coils and flow
Microcement calculator – Estimate materials for a microcement system

Walls and finishing

Air conditioner size – Cooling load per room, sensible and latent, kW and BTU/h
Plastering calculator – Gypsum and lime-cement plaster by room: walls, ceilings, reveals, primer, profiles, skim coat and paint
Drywall calculator – Estimate materials for ceilings, partition walls, wall linings and plasterboard finishing
Paint, Putty & Plasterboard – Calculate putty, paint and plasterboard system (boards, profiles, screws, Q1-Q3)
Facade (ETICS) – Facades, reveals, plinth, materials, profiles, anchors and quote
Masonry – Calculate blocks and bonding material for masonry
U-value and insulation – U and R by layers, insulation comparison, heat flow and dew point

Structure and concrete

Roof calculator – Mono-pitch, gable, hip, L and T roofs: rafters, tiles or sheets, membrane, battens, gutters
Solar PV system – Panel layout, kWp, PVGIS production and self-consumption
Excavation and fill – Excavation volume, backfill, haulage and material purchase
Waterproofing – Coatings and membranes for bathrooms, balconies, foundations, roofs, shafts and pools
Fence calculator – Mesh, panel and timber fences by sections: posts, foundations, infill and concrete
Concrete – Calculate concrete volume and materials
Rebar – Calculate reinforcement for concrete elements
Anchors – Calculate anchors for facade or insulation
Staircase Calculator – Calculate staircase dimensions and ergonomics

Area and volume

Cutting plan – Optimal cutting of profiles and battens from stock lengths and offcuts
Surface Areas – Calculate wall and floor areas
Volume – Calculate volume of various geometric shapes
Unit Converter – Convert length, area, volume, mass, force and power: cm to m, inches to cm, hectares and acres to m², m³ to litres, kg to tonnes, kW to hp

Android app

All calculators are also available free as an Android app, with saved projects, calculation history and PDF export. Get it on Google Play