Estimate how much concrete, brick, screed, paint or tile you need from the dimensions of the job.
Choose a material
Pick a material, enter the dimensions and adjust the mix, coverage or waste to match your product.
Planning estimates. Real consumption varies by mix, product and workmanship — cement per m³, bricks per m² and coverage differ by manufacturer. Always confirm with your supplier.
Material: concreteBuilding materials estimator. Quantities for concrete, brick/block, screed, paint and tiles from your dimensions. Planning estimates — real consumption varies by product. Last updated: 13 July 2026.
⚖︎ Results are for informational purposes and do not constitute tax advice. For specific situations, consult a licensed accountant or the relevant tax authority.
Pick a material and enter the dimensions. Concrete volume = area × thickness; bricks = wall area × units per m²; paint = area ÷ coverage × coats:
A 50 m² slab at 10 cm = 5 m³ of concrete — about 1,800 kg of cement (~36 × 50 kg bags) for a C25 mix, plus sand and gravel.
It depends on the grade: roughly 300 kg/m³ for a lean mix up to about 360 kg/m³ for C25. The tool lets you pick the mix and the bag size (25, 40 or 50 kg) and gives the number of bags.
It depends on the brick/block size — from about 13 blocks/m² for large hollow blocks to ~60 bricks/m² for a single leaf of standard UK brick. Pick a preset or enter your own units per m², then add a waste allowance.
Litres = wall area ÷ coverage × number of coats. Coverage is typically 10–12 m² per litre per coat; two coats is standard. The tool adds a waste allowance.
Yes. Add roughly 10% for bricks and straight-laid tiles, and 15–20% for diagonal or herringbone tile layouts and offcuts. The waste percentage is an input for brick, paint and tile.