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Calculate your materials.
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Start with the measurements you have. We turn them into a materials estimate you can check before you buy.
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Featured calculators
Walls & Masonry
Brick & block
Estimate how many bricks or blocks to buy for a wall, taking off doors and windows and rounding up to whole packs when you use one.
Open calculator →ConcreteConcrete
Work out concrete for one or more measured pours, with optional bag, ready-mix and your own price checks.
Open calculator →ConcreteCement, sand & ballast
Estimate cement, sand and ballast quantities from a chosen mix ratio, volume, allowance and whole bag rounding.
Open calculator →ScreedScreed
Estimate floor screed volume and optional bag quantities from floor area, average depth and waste.
Open calculator →DecoratingPaint
Work out paintable wall area, litres and tins with coats, coverage and waste made explicit.
Open calculator →TilingTile
Estimate tile pieces and packs for a wall or floor, with cut allowance and pack rounding.
Open calculator →TilingGrout
Estimate tile joint volume, approximate grout weight and rounded bags from tile and joint dimensions.
Open calculator →TilingTile adhesive
Estimate how many adhesive bags to buy from your measured surface, the coverage on your chosen bag and any extra you choose.
Open calculator →PavingPaving
Estimate how many slabs or pavers to buy for a measured patio or path, including an optional gap and extra for cuts.
Open calculator →DeckingDecking
Estimate deck boards or packs from the finished area, board size and gap you have chosen.
Open calculator →Landscaping & BoundariesFencing
Estimate panels, posts and optional gravel boards from the fence line, gates and panel width you measure.
Open calculator →Landscaping & BoundariesFence-post concrete
Estimate concrete volume and bags for a chosen number of circular fence-post holes.
Open calculator →A simple way to plan
Measure. Check. Keep a note.
See the steps clearly
Follow the short route from your measurement to a rounded quantity.
Save or copy your results
Copy a local summary or print it to keep with a shopping list or sketch.
Built for clarity
Clear steps.
Honest limits.
Each tool shows the measurements, allowance and rounding used to reach its result. It also says plainly what it cannot tell you.
Read the methodology →Browse categories
Browse by type of job
Masonry
Browse Calculator.Shop tools and planning notes for measured brick and block quantities.
→Concrete & ScreedFind material-volume calculators for straightforward concrete pours and floor screed layers.
→Paint & CoatingsPlan paint quantities from wall faces, coats and the coverage rate of the selected product.
→WallpaperPlan wallpaper roll quantities with measured wall faces, roll coverage and pattern repeat.
→TilingUse dedicated tile, grout and adhesive tools for distinct tiling material quantities.
→FlooringPlan whole flooring packs across measured rooms using the coverage on the pack you are considering.
→Plan before you start
A clear number is a better place to begin.
Use a calculator, then confirm the product guidance and your site measurements before ordering.