About this calculator
Count bricks for a wall from its size, with mortar quantities. Covers UK standard metric and imperial bricks in single or double thickness.
How it’s calculated
Each brick, together with its share of mortar joint, covers one module of wall face. A 215 × 65 brick with 10 mm joints covers 225 × 75 mm, giving about 59.3 bricks per m², usually rounded to 60. A double-thickness wall doubles the count.
Worked example
With these inputs:
- Wall length
- 8 m
- Wall height
- 1.2 m
- Openings area
- 0 m²
- Brick size
- Standard 215 × 65 mm
- Wall thickness
- Half-brick (single skin)
- Mortar mix (cement:sand)
- 1:5 (general)
- Waste allowance
- 5%
the result is:
- Bricks needed
- 598 bricks
- Wall area (net)
- 9.6 m²
- Mortar volume (wet)
- 0.33 m³
- Mix 1:5 needs
- 5 × 25 kg cement + 0.57 t building sand
- Packs of 500
- 2 packs
Tips from the trade
- 5% waste is normal for new brick. Use 10% for reclaimed brick or a lot of cutting.
- Buy every brick for one wall at the same time. Different batches can vary in colour.
- For 1,000 bricks, allow roughly 1 tonne of building sand and 6–8 bags of cement at 1:4–1:5.
Common questions
How many bricks in a square metre?
About 60 standard bricks per m² for a half-brick wall, and 120 for a one-brick wall.
Results are estimates for planning and pricing. Check quantities against your drawings, the manufacturer’s data and the Building Regulations before ordering.