How do I calculate the number of bricks for a wall?

Net area = length × height - opening area. Divide it by (brick face length + joint) × (brick face height + joint), using matching area units, then add your allowance and round upward. The example is 10 × 2.4 m = 24 m², minus a 0.9 × 2.1 m opening = 1.89 m², leaving 22.11 m². It gives 1,310.22 bricks before allowance and 1,376 whole bricks with 5% added, or 3 packs of 500.

How many bricks per square metre or square foot?

A 215 × 65 mm face with a 10 mm joint gives a 225 × 75 mm module and 59.26 bricks per m² before allowance. A 230 × 76 mm face with the same joint gives 48.45. A 7.625 × 2.25 in face with a 0.375 in joint gives 6.86 per square foot. The often-quoted 6.75 figure instead uses an 8 × 2⅔ in nominal module. This tool uses the face and joint you enter.

Can I use feet, modular bricks, queen bricks or custom local sizes?

Yes. Wall dimensions use metres or feet; brick dimensions and joints use millimetres or inches. Presets include UK, Australian, US modular, queen and utility faces. Choose Custom face for other measured sizes, including bricks sold in India, Pakistan or South Africa. Unit switches reinterpret the typed numbers, so update measurements to the selected units. Decimal dimensions such as 7.625 are accepted; fractions such as 7 5/8 are not.

How are doors, windows, allowance and packs handled?

Add an opening with width, height and a count for identical openings. Up to 10 rows are accepted. Openings must leave positive net area. The allowance is your entered percentage, not a recommendation; 0 adds none. Bricks and packs are rounded upward. Pack quantity is based on the whole brick count and the pack size you supply.

Does this calculate mortar, construction costs or wall thickness?

It calculates single-leaf brick counts, separate brick face and laid-module areas, supplied brick material subtotals and a sum of supplied flat-wall quote totals. It does not calculate mortar volume, sand/cement mix, labour rates or wall thickness. For a supplied wall quote, explicitly enter all remaining material and charge totals and choose the count or whole-pack brick subtotal; omitted charges are not assumed to be zero. A 9-inch or double-skin wall, headers, curved surfaces and complex bonds need a different quantity model. It does not specify materials for structural use.

Does it count brick paving, patios or herringbone cuts?

This page models a single wall face. The separate Paver Calculator counts horizontal paved areas using the top face or pack coverage. Neither an area ratio nor a waste percentage determines individual placements or cuts for a herringbone layout.

Can I use this browser software and copy the working?

Yes. The free calculator runs in your browser, with Copy the working available for the complete result. Deliberate edits are saved locally when storage is available. Start over clears the saved draft; Back to the example restores the example measurements. No installer or spreadsheet download is provided.

Can I calculate brick material cost or price per brick?

Enter your own price under Supplied brick material price and choose Per brick or Per pack. A pack price is divided by the Pack value under The brick and the joint to show the unit rate. The count subtotal uses the estimated whole bricks including your waste allowance; the whole-pack subtotal uses the number of complete packs. Both subtotals round to two decimals using the full rate, while the displayed per-brick rate has six decimals. Use one currency throughout. The material subtotals cover bricks only and exclude mortar, labour, delivery, tax, installation and repair. Use Add other supplied flat-wall quote totals to sum your separately supplied remaining material and charge amounts; this does not estimate those missing charges or calculate a house, driveway or repair quote. The price stays only in this tab, and Copy the working copies the quantity calculation.

What is the area of a brick face, and can I count rectangular fire bricks?

Brick face area, excluding joints, multiplies the measured face length and height. A 215 by 65 mm face is 0.013975 square metres; the laid module with a 10 mm joint is separately 0.016875 square metres. For rectangular fire-brick face counts, choose Custom and enter its measured face dimensions and the joint you want counted. This is material arithmetic for one planar face. It does not design a fire pit, oven or kiln, assess heat suitability, or specify structure.

Can I total a supplied brick installation, fence, veneer or siding quote?

Yes, for one measured flat face. Enter its rectangle and openings under The wall, then choose the actual brick face size, joint, allowance and pack size. For a fence use one flat panel face; for veneer or siding use the measured rectangular face being covered. Enter your brick price under Supplied brick material price, enable Add other supplied flat-wall quote totals, and explicitly choose the count or complete-pack subtotal. Supply all remaining mortar and material costs and all labour and other charges in the same currency, including delivery and tax to include. Enter 0 only for a supplied zero amount. The total sums those amounts; it does not infer missing charges or labour rates, count other faces, corners, posts or supports, specify installation or structure, or calculate a complete house, repair or paving quote.

Brick Calculator

Enter wall length and height, subtract openings, and choose a brick face size and joint width. The calculator shows area, bricks per unit area, the count before and after your allowance, and whole packs. It estimates material for one face from supplied measurements.

Wall 10 x 2.4 mBrick 215 x 65 mmJoint 10 mmWaste 5%1 opening

wall        10 m x 2.4 m = 24.00 m² gross
opening     0.9 m x 2.1 m = 1.89 m²
net wall    22.11 m²

brick face  215 x 65 mm
joint       10 mm
laid module 225 x 75 mm = 0.016875 m²

per m²      59.26 bricks
bare count  1,310.22
waste 5%    1,375.73 → 1,376 bricks
packs       3 of 500

Bricks

1,376

Net wall

22.11 m²

Per m²

59.26

Packs

3 of 500

22.11 m² of single-leaf face at 59.26 bricks per m²: 1,376 bricks including 5% waste, which is 3 packs of 500.

Brick face area, excluding joints: 0.013975 m². Laid-module area, including one joint in each direction: 0.016875 m².

Supplied brick material price

Price basis
Your price (currency units)

Enter your own price in one currency. A pack price is divided by Pack under The brick and the joint to find the per-brick rate. Count and pack subtotals use the full rate and round to two decimals; the displayed unit rate has six decimals. These figures cover bricks only, with no mortar, labour, delivery, tax, repair or installation total. The price, its basis and any supplied quote inputs last only in this tab.

Add other supplied flat-wall quote totals

The wall

Opening 1m wide bym tall, how many:

The brick and the joint

Counts use the brick face plus one joint in each direction. Enter measured dimensions and your own allowance; this is material arithmetic for a single face. Changing a unit changes how the typed number is interpreted, so enter the corresponding measurement in that unit. Up to 10 opening rows are supported. Your edited measurements are remembered in this browser when storage is available.

1 m² of wall, 0.02 m² faceno mortar joint
50 bricks exactly
215 x 65 brick, 10 mm jointone square metre
59.26 bricks per m², so 60 whole bricks
Opening bigger than the wall2 m² door, 1.8 m² wall
Those openings come to 2 m², more than the 1.8 m² wall. Openings cannot exceed the wall, so check the opening sizes or the wall dimensions.

Accuracy. Exact arithmetic formula on the wall, openings, brick face and joint you enter: the joint is added once in each direction before dividing. Areas and unrounded counts use floating-point numbers; whole bricks and packs round upward from the decimal values of the parsed measurements and exact unit conversions. This is an area-based material estimate for a single-leaf face; it does not specify structure, bond or wall thickness. The bare count, the count with waste and the rounding up to a whole brick are three separate figures on the panel above, so nothing is folded into one number you cannot take apart.

Common questions

How do I calculate the number of bricks for a wall?: Net area = length × height - opening area. Divide it by (brick face length + joint) × (brick face height + joint), using matching area units, then add your allowance and round upward. The example is 10 × 2.4 m = 24 m², minus a 0.9 × 2.1 m opening = 1.89 m², leaving 22.11 m². It gives 1,310.22 bricks before allowance and 1,376 whole bricks with 5% added, or 3 packs of 500.
How many bricks per square metre or square foot?: A 215 × 65 mm face with a 10 mm joint gives a 225 × 75 mm module and 59.26 bricks per m² before allowance. A 230 × 76 mm face with the same joint gives 48.45. A 7.625 × 2.25 in face with a 0.375 in joint gives 6.86 per square foot. The often-quoted 6.75 figure instead uses an 8 × 2⅔ in nominal module. This tool uses the face and joint you enter.
Can I use feet, modular bricks, queen bricks or custom local sizes?: Yes. Wall dimensions use metres or feet; brick dimensions and joints use millimetres or inches. Presets include UK, Australian, US modular, queen and utility faces. Choose Custom face for other measured sizes, including bricks sold in India, Pakistan or South Africa. Unit switches reinterpret the typed numbers, so update measurements to the selected units. Decimal dimensions such as 7.625 are accepted; fractions such as 7 5/8 are not.
How are doors, windows, allowance and packs handled?: Add an opening with width, height and a count for identical openings. Up to 10 rows are accepted. Openings must leave positive net area. The allowance is your entered percentage, not a recommendation; 0 adds none. Bricks and packs are rounded upward. Pack quantity is based on the whole brick count and the pack size you supply.
Does this calculate mortar, construction costs or wall thickness?: It calculates single-leaf brick counts, separate brick face and laid-module areas, supplied brick material subtotals and a sum of supplied flat-wall quote totals. It does not calculate mortar volume, sand/cement mix, labour rates or wall thickness. For a supplied wall quote, explicitly enter all remaining material and charge totals and choose the count or whole-pack brick subtotal; omitted charges are not assumed to be zero. A 9-inch or double-skin wall, headers, curved surfaces and complex bonds need a different quantity model. It does not specify materials for structural use.
Does it count brick paving, patios or herringbone cuts?: This page models a single wall face. The separate Paver Calculator counts horizontal paved areas using the top face or pack coverage. Neither an area ratio nor a waste percentage determines individual placements or cuts for a herringbone layout.
Can I use this browser software and copy the working?: Yes. The free calculator runs in your browser, with Copy the working available for the complete result. Deliberate edits are saved locally when storage is available. Start over clears the saved draft; Back to the example restores the example measurements. No installer or spreadsheet download is provided.
Can I calculate brick material cost or price per brick?: Enter your own price under Supplied brick material price and choose Per brick or Per pack. A pack price is divided by the Pack value under The brick and the joint to show the unit rate. The count subtotal uses the estimated whole bricks including your waste allowance; the whole-pack subtotal uses the number of complete packs. Both subtotals round to two decimals using the full rate, while the displayed per-brick rate has six decimals. Use one currency throughout. The material subtotals cover bricks only and exclude mortar, labour, delivery, tax, installation and repair. Use Add other supplied flat-wall quote totals to sum your separately supplied remaining material and charge amounts; this does not estimate those missing charges or calculate a house, driveway or repair quote. The price stays only in this tab, and Copy the working copies the quantity calculation.
What is the area of a brick face, and can I count rectangular fire bricks?: Brick face area, excluding joints, multiplies the measured face length and height. A 215 by 65 mm face is 0.013975 square metres; the laid module with a 10 mm joint is separately 0.016875 square metres. For rectangular fire-brick face counts, choose Custom and enter its measured face dimensions and the joint you want counted. This is material arithmetic for one planar face. It does not design a fire pit, oven or kiln, assess heat suitability, or specify structure.
Can I total a supplied brick installation, fence, veneer or siding quote?: Yes, for one measured flat face. Enter its rectangle and openings under The wall, then choose the actual brick face size, joint, allowance and pack size. For a fence use one flat panel face; for veneer or siding use the measured rectangular face being covered. Enter your brick price under Supplied brick material price, enable Add other supplied flat-wall quote totals, and explicitly choose the count or complete-pack subtotal. Supply all remaining mortar and material costs and all labour and other charges in the same currency, including delivery and tax to include. Enter 0 only for a supplied zero amount. The total sums those amounts; it does not infer missing charges or labour rates, count other faces, corners, posts or supports, specify installation or structure, or calculate a complete house, repair or paving quote.

Exact arithmetic formula on the wall, openings, brick face and joint you enter: the joint is added once in each direction before dividing. Areas and unrounded counts use floating-point numbers; whole bricks and packs round upward from the decimal values of the parsed measurements and exact unit conversions. This is an area-based material estimate for a single-leaf face; it does not specify structure, bond or wall thickness.