Brick Calculator: Cement, Sand

How many bricks does a wall take, and how many bags of cement and how much sand for the mortar? Type the wall's length and height, pick how thick it is, and Brick Calculator shows the bricks to buy, the cement bags and the sand, with the working behind every number.

BRICKS FOR A WALL
• Half-brick, one-brick and one-and-a-half-brick walls
• Indian modular and traditional bricks, UK bricks, US modular bricks, UK and US concrete blocks, or your own brick's size
• Doors and windows are taken off the wall: add each one with its width, height and how many
• Wastage included and shown separately, so you see the exact count and the count to buy
• Mortar, cement bags and sand from the mix you choose (1:3 to 1:8)

PLASTER
• One side or both sides of a wall, with doors and windows taken off
• Any thickness, with 6 to 25 mm (or 1/4 to 1 in) one tap away
• Cement bags and sand for the plaster

CONCRETE
• Slabs, rectangular columns and round columns, with how many of each
• Nominal mixes M10, M15, M20 and M25 (1:3:6 to 1:1:2)
• Concrete to order with wastage, cement bags, sand and aggregate
• In the US: how many 80 lb or 60 lb bags of ready-mix

YOUR UNITS, YOUR PRICES
• Measure in feet and inches or in metres; switching converts what you already typed
• Set up for India & South Asia, UK & Ireland, US & Canada or other metric countries: the starting brick, mix, bag size and units follow
• 50 kg, 25 kg, 94 lb or 70 lb cement bags
• Enter what you pay for bricks, cement, sand and aggregate to see the estimated cost
• Share an estimate as text to WhatsApp, SMS or email
• Everything you type is kept, so your estimate is there tomorrow

EVERY NUMBER HAS A SOURCE
Every starting value (brick sizes, joints, mixes, the dry volume factor, wastage) is a typical one, you can change each of them, and the app's Sources screen shows where each comes from, with a link to the page.

Brick Calculator gives estimates for planning. Real use depends on the bricks, the mason and the site, and the app is not a substitute for an engineer. For concrete that carries load, follow your engineer's mix.

Works offline, with no account and no sign-in.