Home improvement calculators for United Kingdom
Every tool uses square metres, GBP pricing fields and VAT handling, with formulas that are documented and unit-tested.
Concrete & Masonry
Volume, slab, footing and masonry material calculators.
- Concrete Slab CalculatorEnter your slab dimensions in metres and millimetres to get the cubic metres of ready-mixed concrete to order, with wastage and an optional VAT-aware cost estimate.
- Concrete Volume CalculatorEnter your pour dimensions in metres and millimetres — rectangular or cylindrical — to get the cubic metres of ready-mixed concrete to order, with wastage and an optional VAT-aware cost estimate.
Flooring & Tile
Flooring, tile and underlay quantity and cost calculators.
- Tile CalculatorEnter your floor or wall dimensions in metres and your tile size in millimetres to get the tile and box count to buy, with grout joints and wastage included.
- Flooring CalculatorEnter your room dimensions in metres to get the square metres of flooring to buy and the number of packs, with a wastage allowance for cuts and spares.
Painting & Walls
Paint coverage and wall finish calculators.
Walls & Insulation
Drywall, plasterboard, stud and insulation calculators.
Landscaping
Mulch, gravel, soil and outdoor material calculators.
- Mulch CalculatorEnter your border dimensions in metres and the mulch depth in centimetres to get the volume in cubic metres and litres, plus the number of bags to buy.
- Gravel CalculatorEnter the area dimensions in metres and the gravel depth in millimetres to get the cubic metres and tonnes to order, with wastage and an optional VAT-aware cost estimate.
Decks & Fences
Decking, fence post and panel calculators.
- Fence CalculatorEnter your total fence length to get the number of standard fence panels and posts to buy, with gates handled and an optional VAT-aware cost estimate.
- Decking CalculatorEnter your deck length and width in metres to get the number of decking boards and joists to buy, using editable standards of 140 mm boards and 450 mm joist centres.