Paving Stone Quantity Calculator
This calculator helps estimate the number of paving stones needed to cover a defined area, with an optional 10% allowance for wastage. By entering the total surface dimensions and the size of a single paving stone, you get both the required quantity and a recommended amount to purchase.
Calculate Number of Paving Stones with Wastage
Paving Stone Quantity Formula
Where
- $$a$$, $$b$$ — area length and width (to be paved)
- $$l$$, $$w$$ — length and width of one paving stone
- $$r$$ — required number of stones
- $$c$$ — total recommended number of stones (includes 10% extra for breakage/wastage)
This calculator is widely used for driveways, patios, walkways, and other paving projects. The built-in 10% allowance ensures you have extra tiles for cutting, mistakes, or replacements. Input can be in any unit (meters, feet, inches) as long as all measurements use the same unit system.