Patio Slab Calculator
Calculate paving slabs for patio
ft
ft
Formula
Slabs = (Area × 144) / SlabSize² × 1.1
Convert to square inches, divide by slab area, add 10% waste.
Examples
12×10ft, 24" slabs
~40 slabs.
Frequently Asked Questions
About Patio Slab
Calculate paving slabs needed for patio.