Concrete Calculator
Measure one or several pours, combine the volume, add only the ordering allowance you choose and optionally convert to bags using your product’s stated yield.
Use calculator →Masonry & Concrete calculators
Choose the tool that matches the quantity you are trying to find. Use the focused calculators for bricks, blocks, mortar, sand and cement or concrete; use the project planners when you need several materials from the same job.
UK metric-firstNo account neededAssumptions kept visible
Not sure where to start? Pick the material or job below — each calculator has one clear purpose.
Choose a calculator ↓Core calculators
Start with what you need to work out
These six calculators cover the main quantity and cost questions in this cluster without forcing brickwork, mortar and concrete into one overloaded form.
Ready-Mix Concrete Cost Calculator
Already have a concrete volume? Apply your chosen allowance and quoted price per cubic metre to build a transparent ready-mix material-cost estimate.
Use calculator →Brick Calculator
Calculate bricks from wall dimensions and openings. Choose half- or one-brick construction, check brick and joint sizes, then add your own allowance.
Use calculator →Block Calculator
Calculate blocks from wall dimensions and openings using the block face and mortar-joint dimensions you enter — not a hidden blocks-per-m² shortcut.
Use calculator →Brick Mortar Calculator
Start with a known brick quantity. Estimate wet mortar from visible brick-and-joint geometry or enter a proven project rate, then optionally convert by product yield.
Use calculator →Sand & Cement Calculator
Already know the finished mix volume? Split it into sand and cement using your own ratio, dry-volume factor and optional density/bag-size inputs.
Use calculator →Complete-job planning
Need more than one material?
Use a project planner when the useful result is a joined buying workflow rather than a single material quantity.
Brick Wall Materials Estimator
Turn a brick wall into a buying list: net brickwork, your brick allowance, optional pack rounding and mortar bags when you have product coverage.
Plan brick wall →Concrete Slab Materials Calculator
Plan excavation, optional sub-base and concrete as separate quantities from the slab build-up and depths you supply.
Plan concrete slab →Measure • check • order
Guides and reference for the calculation
Use these when you want to understand the method, check an assumption or turn a calculator result into a sensible order.
Brick Quantity Guide
Manual method for measuring a wall, deducting openings, checking the bricks-per-m² basis and turning the result into an order.
Read guide →Mortar Estimating Guide
Compare geometry, proven project rates and manufacturer coverage when turning a known brick quantity into a mortar estimate.
Read guide →Concrete Ordering Guide
Measure common pour shapes, combine volumes, choose an explicit allowance and check bagged versus delivered concrete before ordering.
Read guide →UK Brick Sizes & Bricks per m²
Quick reference for the common UK brick format, coordinating dimensions, nominal joints and the basis of the familiar bricks-per-square-metre figures.
Open reference →Which masonry or concrete calculator should you use?
Use the Brick Calculator or Block Calculator when wall dimensions are your starting point. If the brick count is already known and you now need wet mortar, move to the Brick Mortar Calculator. If the required finished mix volume is already known and you only need to split that volume into sand and cement, use the Sand & Cement Calculator.
For concrete, the Concrete Calculator measures one or several pours and can convert the result to bags using the manufacturer yield you enter. Use the Ready-Mix Concrete Cost Calculator when the volume is known and the next question is the material cost from a supplier quote.
Concrete Bag Calculator route
The older Concrete Bag Calculator URL is retained for visitors and links that already use it, but bagged-concrete planning is now consolidated into the main Concrete Calculator. That keeps one source of truth for concrete volume, allowance and product-yield bag rounding.
Planning estimate: these tools calculate quantities from the measurements and assumptions you enter. Check drawings, actual site dimensions, current product data and supplier information before ordering.