Flooring and tile
Tiles, laminate, vinyl, pavers and wallpaper for floors and walls.
4 calculators availableFeatured
Browse category →Free calculators · No sign-up
Construction Material Calculators
Calculate accurate material quantities, purchase units, waste allowances and local project costs.
Search by material, room or project type
Tile laying calculatorFree professional tile laying calculator with metric and imperial units, purchase quantities and local costs.
Flooring and tileFlooring calculatorFree professional flooring calculator with metric and imperial units, purchase quantities and local costs.
Flooring and tilePaint calculatorFree professional paint calculator with metric and imperial units, purchase quantities and local costs.
Walls and insulationConcrete calculatorFree professional concrete calculator with metric and imperial units, purchase quantities and local costs.
Concrete and masonryBrick and block calculatorFree professional brick and block calculator with metric and imperial units, purchase quantities and local costs.
Concrete and masonryDrywall calculatorFree professional drywall calculator with metric and imperial units, purchase quantities and local costs.
Walls and insulationInsulation calculatorFree professional insulation calculator with metric and imperial units, purchase quantities and local costs.
Walls and insulationRoofing calculatorFree professional roofing calculator with metric and imperial units, purchase quantities and local costs.
Roofing and exteriorPopular calculators
Start with a widely used calculator
The most requested calculators for everyday renovation and building projects.
Concrete calculator
Slab, footing or post-hole volume with bag count or ready-mix comparison.
- Measures
- Volume · m³ / yd³
- Produces
- Ready-mix or bag quantities
Paint calculator
Walls, ceilings, coats and primer rounded to full paint tins.
- Measures
- Area · m² / sq ft
- Produces
- Litres or quarts, rounded to tins
Tile laying calculator
Floor or wall tiles with adhesive, grout and waterproofing.
- Measures
- Area · m² / sq ft
- Produces
- Tile count and boxes
Flooring calculator
Laminate, engineered wood or vinyl packs with layout waste.
- Measures
- Area · m² / sq ft
- Produces
- Packs, underlay and skirting
Roofing calculator
Actual slope area, covering units, battens, ridge and gutters.
- Measures
- Sloped area · m² / sq ft
- Produces
- Covering units and accessories
Brick and block calculator
Brick or block count with mortar, courses and DPC.
- Measures
- Wall area · m² / sq ft
- Produces
- Units, mortar and wall ties
Area calculator
Add rectangles, exclusions and irregular shapes to one total area.
- Measures
- Length · m / ft
- Produces
- Total surface area
Volume calculator
Convert an area and depth into a purchase-ready volume.
- Measures
- Area × depth
- Produces
- Cubic metres or cubic yards
Browse by project
Find calculators by project category
Every calculator is grouped by the kind of work it supports.
Walls and insulation
Drywall, insulation, render and paint for interior and exterior walls.
4 calculators availableFeatured
Browse category →Concrete and masonry
Slabs, footings, brick and block walls with mortar and reinforcement.
2 calculators availableFeatured
Browse category →Roofing and exterior
Roof coverings, decking, fencing and stair geometry.
4 calculators availableFeatured
Browse category →Landscaping and bulk materials
Gravel, sand, topsoil, mulch and excavation by volume and weight.
5 calculators availableFeatured
Browse category →Geometry and planning
General area and volume tools for any project shape.
2 calculators availableFeatured
Browse category →How it works
From a measurement to a reliable purchase quantity
Measure the project
Enter dimensions or draw an irregular surface directly on the plan.
Select the product specification
Choose the material, format and installation pattern.
Add installation and waste assumptions
Adjust cutting waste, spacing and technical options — every assumption stays editable.
Review purchase quantities and costs
Get purchase-ready quantities rounded to full packs, plus a local cost estimate.
- Theoretical requirement and purchase quantity are shown separately, never merged.
- Supplier pack sizes are taken into account before the final quantity is rounded.
- Waste assumptions are pre-filled but always editable to match your product and site.
- Changing the currency changes the display only — prices are not automatically converted.
- Always verify manufacturer and supplier specifications before ordering.
Project examples
See a full project worked out
Real dimensions, assumptions and results linked to a pre-filled calculator.
Concrete calculator
18 m² terrace slab, 12 cm
Concrete, bags and reinforcement allowance
2.38 m³ including 10% allowanceOpen project →Tile laying calculatorTile a 6 m² bathroom floor
Tiles, adhesive, grout and waterproofing
Wet-area system with 15% cutting allowanceOpen project →Roofing calculator8 × 7 m gable roof at 30°
Concrete tiles, membrane, battens and gutters
Actual slope area, tiles and full accessoriesOpen project →Insulation calculatorInsulate a 30 m² cavity wall with mineral wool
Single 100 mm layer, standard batts
4 packs at R ≈ 2.9 m²K/WOpen project →Decking calculator4 × 3 m timber deck
Boards, joists, posts and fixings
Structure and decking shopping listOpen project →Fence calculator12 m garden fence
Posts, bays, rails and concrete
Complete fence material listOpen project →Built to be transparent, not a black box
Every quantity on this platform can be traced back to a formula and an assumption you can edit.
- Formulas are explained on every calculator page
- Every assumption — waste, spacing, coverage — is editable
- Waste is shown separately from the theoretical requirement
- Purchase quantities are rounded to full packs or units
- Metric and imperial units are both supported
- Local prices and currencies are supported
- Calculations can be saved, shared and printed
- Results are planning estimates, not contractor quotations or structural approvals
Frequently asked questions
Questions about the calculators
How accurate are the calculators?
Each calculator uses explicit, documented formulas based on the dimensions and product data you enter. Accuracy depends on the accuracy of your measurements and product specifications.
Are metric and imperial units supported?
Yes. Every calculator supports both metric and imperial units, and you can switch between them at any time without losing your inputs.
Does changing currency convert prices?
No. Changing the currency only changes the display symbol and formatting. Enter a current supplier price in the selected currency for an accurate cost.
How is waste calculated?
Waste allowances are shown as a separate, editable percentage applied on top of the theoretical requirement — they are never hidden inside the base quantity.
Are supplier pack sizes included?
Yes. Purchase quantities are rounded up to full packs, boxes, bags or rolls based on the coverage or size you enter for your chosen product.
Can a calculation be saved or shared?
Yes. Every calculator lets you save a calculation locally, share it as a link with prefilled values, or print a clean summary.
Is the result a professional quotation?
No. Every result is a planning estimate. Confirm product specifications, site conditions and final quantities with your supplier or contractor before ordering.
Can irregular surfaces be calculated?
Yes. Several calculators let you draw an irregular surface directly on a plan instead of entering only length and width.