Brick Wall Calculator — m, cm to bricks, mortar, cost
How to use this calculator
Type wall length and height with the m / cm / mm dropdown, pick a brick (Standard 250×120×65 mm, Modular 190×90×65 mm, or Custom), wall thickness, joint size, and bond — the page returns brick count, 25 kg mortar bags, and wall weight you can hand to a supplier. Pick a preset below to fill realistic numbers for common jobs.
Cost — enter price per brick and per 25 kg mortar bag. Select your currency (EUR, PLN, CZK, etc.).
Labor — rate per m², per brick, or a flat price. Grand total sums all active sections.
Saved Calculations
| Time | Size | Wall m² | Bricks | Mortar | Material | Labor | Total |
|---|
How to Calculate Bricks for a Wall
Coursing follows Eurocode 6 (EN 1996-1-1) practice with a 10 mm bed and perpend joint. A standard 250×120×65 mm brick in running bond gives about 51 face bricks per m² per wythe; a 190×90×65 mm modular brick runs higher. Choose single, 1.5, or double wythe, then deduct door and window openings so brick and mortar quantities reflect net laid area rather than gross elevation.
Brick Count Formula
Bricks per m² = 1 000 000 / ((brick_length_mm + joint_mm) × (brick_height_mm + joint_mm)). For a standard brick with a 10 mm joint: 1 000 000 / (260 × 75) ≈ 51.3 bricks/m² per wythe. The 1.5-wythe option multiplies by 1.5 and double wythe doubles it. A 5% waste allowance suits a plain wall, 7% is typical, and 10% covers heavy cutting around openings and returns.
Mortar & Cost Basis
A 25 kg bag of general-purpose mortar lays roughly 40 standard bricks at 10 mm joints — about 48 at 6 mm and 34 at 12 mm. Multi-wythe walls add collar-joint mortar. Material cost multiplies the waste-inclusive brick count by unit price plus bags × bag price in your selected currency; labor can be priced per m², per brick, or flat. For mortar-only takeoffs use the mortar & grout calculator, and for concrete blocks switch to the block wall calculator. Veneer is covered by the stone veneer calculator, and a bond beam or lintel can be sized with the concrete beam calculator.
FAQ
Does this include the foundation? No — it estimates the brick wall above ground only; size footings separately with the retaining wall calculator or a concrete footing bag calculator. Working in feet? Use the imperial brick wall calculator. Are estimates exact? They are planning quantities; order full packs and consult a qualified mason for structural or load-bearing walls.
On install day
Three numbers masons watch. Bricks per pack — EU yards ship 240, 360 or 500 brick packs (~€0.30–€1.00 per face brick in 2025), so order in full packs to avoid loose-brick fees. Mortar shelf life — a 25 kg bag of general-purpose M5/M10 mortar costs €5–€8 and stays workable ~2.5 h once gauged; a single mason laying ~80–100 bricks/hour burns one bag every 25–35 minutes. The #1 estimator mistake is forgetting that Flemish and English bonds use 12–20% more bricks than running bond because of the visible header courses — this calculator applies the uplift automatically. Eurocode 6 (EN 1996-1-1) requires vertical movement joints at roughly 8–12 m for unreinforced clay brickwork and a properly bedded cap or coping on walls above 1 m.
