Brick calculator — bricks and mortar for a wall

Enter the wall area in m² and the actual brick face size in millimetres. Bricks per m² are calculated from the face plus one joint in each direction.

L'outil et les libellés sont en français. Les notes de référence ci-dessous restent en anglais.

brick calculator

Wall area (net) (m²)Brick length (mm)Brick height (mm)Mortar joint (mm)Wall typeWaste allowance (%)

TaskBider drafters, detailers and BIM coordinators work remotely and every listing shows the pay. Typical published range for this work: $18–$45/hr.

bricks per m² = 1,000,000 ÷ ((L + joint)(H + joint)) × leaves · bricks = ceil(area × per m² × (1 + waste/100))

UK standard bricks (215 × 102.5 × 65 mm, 10 mm joints) give 59.26 per m² for a half-brick wall. US modular bricks are 7⅝ × 2¼ in (194 × 57 mm).

Input	Result
10 m², 215 × 65, 10 mm, 5%	59.26 × 10 × 1.05 = 623 bricks
US modular 194 × 57 mm, 10 mm, 10 m²	≈ 732 before waste

About 60 standard UK bricks (215 × 65 mm) with 10 mm joints for a half-brick wall, and about 120 for a one-brick wall.