Brick and Concrete Calculator
How many bricks a wall needs, or how much cement, sand and aggregate a concrete slab needs.
…
How to do it
- 1Add the text
Paste or type the text or amount here.
- 2See the result
The result appears right away as you type.
- 3Copy it
Copy the result and use it anywhere. Your text goes nowhere.
About this tool
Choose brick or concrete. For a wall, enter its length and height and whether it is half-brick (115 mm) or full-brick (230 mm) thick. For a slab, enter length, width and thickness. A waste allowance is added. The concrete uses a 1:1.5:3 mix (M20), with a 50 kg cement bag.
Frequently asked questions
Which brick size is used?
The standard 240 × 115 × 70 mm brick with 10 mm mortar, about 50 bricks per square metre for a half-brick wall.
Is this exact?
No. It is an estimate for planning. Ask your mason for the final quantity.
More tools you may need
Scientific CalculatorA free online scientific calculator with sin, cos, log, powers, roots and brackets.Typing Speed TestTest your typing speed in words per minute with accuracy.Webcam TestCheck that your camera works and see its resolution.Pomodoro TimerWork in 25-minute focus sessions with short and long breaks.Countdown Timer to a DateSee the days, hours, minutes and seconds until a date.Online RulerAn on-screen ruler in centimetres and inches, which you can calibrate with a bank card.