Brick & block calculator
Calculate bricks, blocks and mortar.
Estimate bricks, blocks and mortar quantities for walls using length, height, openings, wall type and wastage allowance.
Standard rates
- Bricks: 60 per m²
- Blocks: 10 per m²
- Openings deducted
- Optional 10% allowance
Brick & Block Calculator
Switch between brickwork and blockwork. Your measurements stay in place.
Your Result
The estimate will appear here.
Need bricks, blocks or mortar?
Use this estimate to compare prices from local builders merchants and material suppliers.
Ask About Supplier ListingsBrick & Block Calculator FAQs
Simple answers for common wall estimating questions.
How many bricks are needed per square metre?
A common UK estimating rate is around 60 standard bricks per square metre for stretcher bond brickwork.
How many blocks are needed per square metre?
A common UK estimating rate is around 10 standard blocks per square metre.
Should I include wastage?
Yes, for most real jobs a 10% allowance is sensible for cuts, breakages and site adjustments.
Is the mortar exact?
No. Mortar volume is an estimate because joint size, wall type and workmanship vary. Always confirm ordering quantities with your supplier or bricklayer.