Engineering & Construction
Block Quantity Calculator
Count concrete blocks from the wall size, the block face and the joint.
Free forever.
Count uses the block face plus one joint in each direction. Defaults suit a 390 × 190 mm block with a 10 mm joint.
Result
Press Calculate.
Result
Press Calculate.
How to use the Block Quantity Calculator
- Enter the wall length and height.
- Confirm the block size and joint.
- Read the net count and the order count with wastage.
Questions
Why 390 mm and not 400 mm?
400 mm is a common nominal size. The default is the block itself, and the 10 mm joint makes a 400 mm pitch. Type the size you are buying.
Are openings removed?
No. Measure the wall area you actually want filled, or subtract openings from the length and height yourself.
This runs entirely in your browser. Nothing you type is sent to a server.