Concrete Volume Calculator
Calculate concrete volume in cubic metres for slabs, pads, footings and other rectangular pours.
Use calculator →UK building & material calculators
Use the search or browse by category. Calculators are metric-first, work without an account and keep variable assumptions editable.
Masonry & Concrete
Masonry & Concrete calculators
Bricks, blocks, mortar and concrete quantity tools for UK building projects.
Concrete Bag Calculator
Estimate how many bags of premixed concrete are needed from the required concrete volume and the manufacturer’s stated yield per bag.
Use calculator →Ready-Mix Concrete Cost Calculator
Estimate a ready-mix concrete material cost from volume, waste allowance and your quoted price per cubic metre.
Use calculator →Brick Calculator
Estimate bricks for a wall from net wall area, bricks per square metre and a selectable waste allowance.
Use calculator →Block Calculator
Estimate concrete or aerated blocks from wall area using an editable blocks-per-square-metre rate.
Use calculator →Brick Mortar Calculator
Estimate wet mortar volume from brick quantity using an editable mortar-volume rate per 1,000 bricks.
Use calculator →Sand & Cement Mix Calculator
Split an estimated wet mortar or screed volume into cement and sand using an editable dry-volume factor and mix ratio.
Use calculator →Walls & Plastering
Walls & Plastering calculators
Plasterboard, plaster, render and partition calculators for walls and ceilings.
Plasterboard Calculator
Calculate plasterboard sheet quantities for walls or ceilings from area, board dimensions and waste allowance.
Use calculator →Plaster Coverage Calculator
Estimate bags of plaster from area, number of coats and the product’s stated coverage per bag.
Use calculator →Render Volume Calculator
Calculate the wet render volume required from wall area, coat thickness and an allowance for waste.
Use calculator →Stud Wall Materials Calculator
Estimate studs, plates and noggin lengths for a simple straight timber stud partition.
Use calculator →Plasterboard Screw Calculator
Estimate plasterboard screw quantities from sheet count and your chosen screws-per-sheet allowance.
Use calculator →Floors & Decorating
Floors & Decorating calculators
Flooring, tiling, paint, wallpaper and finishing quantity calculators.
Floor Screed Calculator
Calculate screed volume from floor area, average depth and an optional waste allowance.
Use calculator →Paint Calculator
Estimate litres and tins of paint from area, coats, product coverage and tin size.
Use calculator →Wallpaper Roll Calculator
Estimate wallpaper rolls from room perimeter, drop length, roll dimensions and pattern repeat.
Use calculator →Tile Calculator
Calculate tile count from surface area, tile size and a waste percentage for cuts and breakage.
Use calculator →Tile Adhesive Calculator
Estimate bags of tile adhesive using tiled area and the adhesive manufacturer’s stated coverage per bag.
Use calculator →Grout Coverage Calculator
Estimate grout bags from tiled area and the grout product’s stated coverage for your tile and joint dimensions.
Use calculator →Laminate Flooring Calculator
Estimate laminate packs from room area, pack coverage and a selectable cutting allowance.
Use calculator →Coving Length Calculator
Calculate coving linear metres and stock lengths from room perimeter and an allowance for mitres and offcuts.
Use calculator →Insulation Board Calculator
Estimate rigid insulation boards from surface area, board dimensions and cutting allowance.
Use calculator →Loft Insulation Roll Calculator
Estimate loft insulation rolls from area and the manufacturer’s stated coverage per roll.
Use calculator →Roofing
Roofing calculators
Roof covering, felt, battens and gutter quantity estimators.
Roof Area Calculator
Calculate sloping roof surface area from simple gable dimensions or one rectangular roof slope using the measured roof pitch.
Use calculator →Roof Tile Calculator
Calculate field roof tiles from measured sloping roof area and the manufacturer’s tiles-per-m² rate, with 0% default extra allowance.
Use calculator →Roofing Membrane Roll Calculator
Calculate roofing membrane or underlay rolls from sloping roof area and the actual effective installed coverage per roll, with 0% default extra.
Use calculator →Roof Batten Length Calculator
Calculate horizontal tile-batten rows and linear metres from the actual first-to-last batten datum distance, batten-row length and manufacturer-specified maximum gauge, with 0% default extra.
Use calculator →Guttering Length Calculator
Calculate gutter sections, straight-run joints and spacing-based support positions from the measured run, actual stock length and manufacturer bracket spacing, with 0% default extra stock.
Use calculator →Timber & Carpentry
Timber & Carpentry calculators
Timber, stud wall, skirting and decking quantity calculators.
Skirting Board Calculator
Calculate skirting linear metres and whole stock boards from a measured wall run or room perimeter, actual opening deductions and the supplier’s board length.
Use calculator →Timber Length Calculator
Convert required linear metres into whole supplier stock lengths using the actual stock length, with 0% extra by default.
Use calculator →Decking Board Calculator
Estimate board rows and linear metres from deck dimensions, board direction, actual board width, planned gap and supplier stock length.
Use calculator →Decking Joist Calculator
Count simple deck joist lines and linear metres from the actual frame dimensions and specified maximum joist centres.
Use calculator →Landscaping
Landscaping calculators
Paving, gravel, fencing, turf, topsoil and garden project calculators.
Fence Panel Calculator
Estimate panel bays and base post positions from the measured run, actual panel width and explicit layout extras.
Use calculator →Postcrete Bag Calculator
Convert a verified bags-per-post rate or known fill volume and bag yield into a whole-bag post-mix order, with 0% spare by default.
Use calculator →Paving Slab Calculator
Estimate paving slabs or whole packs from actual area using real slab dimensions or manufacturer pack coverage; 0% extra by default.
Use calculator →Patio Sub-Base Calculator
Calculate compacted patio sub-base volume from actual area and specified depth, then convert with real supplier density or stated bag coverage; 0% extra by default.
Use calculator →Gravel Calculator
Calculate gravel volume from actual area and chosen depth, then convert using real supplier density or stated bag coverage; 0% extra by default.
Use calculator →Topsoil Calculator
Calculate topsoil volume from actual area and chosen depth, then convert with real supplier density or stated bag volume; 0% extra by default.
Use calculator →Mulch & Bark Calculator
Calculate mulch or bark volume from actual area and chosen depth, then convert with real supplier bag volume or stated coverage; 0% extra by default.
Use calculator →Turf Roll Calculator
Calculate turf rolls from actual lawn area and the supplier’s stated coverage per roll, with 0% extra by default.
Use calculator →Groundworks
Groundworks calculators
Excavation, trench, aggregate, sub-base and spoil volume calculators.
Excavation Volume Calculator
Calculate in-situ excavation volume and an estimated loose spoil volume using an editable bulking factor.
Use calculator →Trench Volume Calculator
Calculate trench excavation volume from length, average width and average depth.
Use calculator →MOT Type 1 Calculator
Estimate sub-base cubic metres and tonnes from area, compacted depth and an editable supplier density.
Use calculator →Aggregate Bag Calculator
Convert an aggregate requirement in tonnes into small bags or bulk bags using the actual bag weight.
Use calculator →Skip Volume Estimator
Convert estimated loose waste volume into common nominal skip-size equivalents for early planning.
Use calculator →Aggregate Tonnage Calculator
Estimate tonnes of aggregate from area, depth and an editable bulk density.
Use calculator →Measuring & Conversions
Measuring & Conversions calculators
Fast area, volume, linear-metre and unit conversion tools for site measurements.
Floor Area Calculator
Calculate floor area in square metres from length and width, with optional quantity for repeated identical spaces.
Use calculator →Wall Area Calculator
Calculate gross and net wall area from room perimeter, wall height and total openings.
Use calculator →Cubic Metre Calculator
Calculate cubic metres and litres from three dimensions entered in metres.
Use calculator →Linear Metre Calculator
Convert an area requirement into linear metres for material of a fixed cover width.
Use calculator →Builder Length Converter
Convert millimetres, centimetres, metres, inches and feet for site measurements.
Use calculator →Area Converter
Convert square metres to square feet, square yards and acres.
Use calculator →Room Volume Calculator
Calculate room volume in cubic metres, litres and cubic feet from length, width and height.
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