How many cement bags per cubic meter?

This estimator uses a common site rule of thumb of about 7 × 50 kg bags per cubic meter for a 1:2:4 style mix. Always confirm the mix design, admixtures, and strength class with your supplier or engineer.

How many bricks per square meter?

Brick counts depend on unit size, joint thickness, and bond. A single-leaf wall with standard metric units is often approximated around 48 bricks per m² of face — treat that as a planning estimate, not a specification.

How much tile wastage should I add?

Many installers budget 10–15% extra for cuts and breakage; diagonal or patterned layouts can need more. The floor tile line item includes 15% wastage and roof tiles include 10% in this calculator.

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Architect Tools

Construction Material Estimator

Calculate exactly how much concrete, bricks, tiles, and other materials you need for walls, floors, roofs, and custom volumes. Add local unit prices to see an instant cost estimate and a transparent calculation trail you can sanity-check.

Converter Productivity Architect Student

1. Oppsett→2. Konstruksjoner→3. Resultater

Prosjektnavn (valgfritt)

Enhetsystem

Din region

Brukes til regionale materialpriser og når du deler egne priser.

Valuta

Complete setup to see live quantities and costs here on desktop. On mobile, use the steps in order.

Preparing tool...

Key benefits

Estimate ready-mix, cement, sand, and gravel from wall and slab volumes.
Quantify bricks, tiles, screed, insulation, and membrane from dimensions you already know.
Turn supplier unit prices into an on-page quote range you can sanity-check in minutes.

What this tool does

All geometry is converted to metric meters internally, then standard rules of thumb turn volumes and areas into material quantities (for example cement bags per m³ of concrete, tiles per m², and common wastage factors). Related utilities on ConvertPal include Concrete Volume Calculator, Room Area Calculator, and Cubic Meter Converter.

Openings subtract from wall face area before volume is calculated, so window and door deductions behave like a simple quantity survey worksheet.

Nothing is sent to a server for the math: your dimensions, selections, and optional prices can be remembered locally in your browser so refreshes are less painful on long estimates.

How to use it

Choose metric or imperial display, your currency, and optionally name the project.
Add structures (walls, slabs, roofs, or custom area/volume) and enter dimensions.
Select materials, optionally type supplier prices, and read quantities, line costs, and the expandable calculation notes.
On Creator (paid), export a branded PDF or CSV for sharing with clients or your purchasing team.

More context

Pair this page with the concrete volume and room area calculators when you are jumping between slab pours and fit-out quantities.

If you need drawing-scale fidelity, start from the scale calculator or CAD exports in the Architect Tools hub, then bring final dimensions here for procurement math.

FAQ

Multiply length × height × thickness to get gross volume, then subtract opening volumes using each opening’s width × height × wall thickness. The tool shows the net face area and resulting volume so you can verify the subtraction.

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This page sits in Architect Tools. Use the related tools above when your next step is a different file type or workflow.

Clear headings, FAQs, and internal links help both readers and search engines understand how this page fits with construction material calculator, concrete estimator, brick calculator.