Bricks and mortar for a wall, from your brick size, mortar joint and wastage
Runs in your browser. Nothing you type is sent anywhere. Checked against sources on 23 Oct 2026.Brick Calculator counts the bricks a wall needs by volume: a 10 m by 3 m wall one brick thick holds 2,850 modular bricks of 190 by 90 by 90 mm laid with 10 mm joints, or 2,993 once five per cent wastage is added. Brick size, joint and wastage are all yours to change.
Pick Metres or Feet under Measured in, then enter the wall's Length, Height and the Doors and windows to deduct.
Choose a wall thickness chip, such as Half brick, modular (90 mm), or type the Wall thickness.
Pick a brick size chip, such as Indian modular (IS 1077) or UK standard, and set the Mortar joint and Wastage.
Add a Price per 1,000 bricks if you want the cost.
Read Bricks to order and the dry mortar volume, and open How it is worked out; Share result copies a link.
A wall is bricks and the mortar between them, and both are worked out here from the same volume.
Enter the wall's length, height and thickness and the calculator finds its volume. It then divides that by the space one brick occupies including its joints. For the Indian modular brick of 190 x 90 x 90 mm with a 10 mm joint, that space is exactly 200 x 100 x 100 mm, which is a fiftieth of a cubic metre: the familiar 500 bricks to a cubic metre, and 95 bricks to a square metre of a single-brick wall.
Four numbers decide the answer and every one of them is a box you can change. Brick size, because a kiln two districts away sells a different brick and the traditional 230 x 110 x 70 mm is still the common one in much of north India. Mortar joint, because 10 mm is normal but not compulsory. Wastage, because breakage and cut bricks at corners are real and five per cent is a floor rather than a rule. And openings, because a wall with two windows in it is not the wall you measured.
Mortar comes out as whatever the bricks do not fill, which is a truer figure than the usual "thirty per cent" rule: it falls when the joint is thinner and rises when the brick is smaller. The dry volume, larger than the wet because the sand and cement are measured dry, uses a factor you can set. Feed that dry figure into the Cement Calculator to turn it into bags and sand.
One limit, stated plainly. Counting by volume assumes the wall is a whole number of bricks thick. Round the thickness to a whole brick before ordering, and treat the result as an estimate to check against your mason's count.
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500 modular bricks, when the brick is 190 x 90 x 90 mm and the mortar joint is 10 mm. Each brick then occupies 200 x 100 x 100 mm including its share of the joint, which divides into a cubic metre exactly 500 times. A larger traditional brick gives about 434.
About 883 for a single-brick wall of 190 mm using modular bricks, before wastage. 100 square feet is 9.29 square metres, and a single-brick modular wall takes 95 bricks per square metre. Add five per cent for breakage and cut bricks and the order becomes roughly 927.
Yes, and by more than people expect. Dropping a 10 mm joint to 5 mm shrinks the space each brick occupies, so the same wall swallows around eight per cent more bricks. Widening it to 15 mm does the reverse. The joint box on this page is there for exactly that reason.
Five per cent is the usual starting figure for a plain wall, and ten is safer where there are many corners, openings or cut bricks. Wastage covers breakage in transit, bricks rejected at the site and the odd pile that never gets laid. The box lets you set your own.
Brick ki quantity kaise nikale: measure the wall, multiply length by height by thickness for its volume, then divide by the volume one brick occupies with its mortar joint. Enter those four figures above and the count appears with the mortar volume beside it, in your own brick size.
Mortar volume appears here and the mix belongs on the Cement Calculator, which handles both concrete and cement-to-sand mortars with your own ratio, bag weight and dry factor. Copy the dry mortar volume from this page into that one and you get the bags and sand for it.
Rates and rules change; check the source before you rely on a figure.
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Same job, other tools: Concrete Calculator – Concrete volume and the cement, sand and aggregate a pour needs.
On the related tools: TMT Bar Weight Calculator – TMT bar weight per metre and per bundle, for 6 mm to 40 mm bars · Step-up SIP Calculator – See how raising your SIP every year changes the final corpus.
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