Calculate patio square footage from length and width, radius, diameter, or known area. Estimate pavers, concrete, gravel base, sand base, edging, waste, material quantity, and project cost.
Rectangular patio mode:
The calculator multiplies patio length by patio width to estimate square footage and perimeter.
Circular patio mode:
The calculator uses radius or diameter to estimate circular patio area and circumference.
Known area mode:
The calculator starts from your known patio area and estimates waste, material units, base volume, sand volume, and cost.
Material estimate:
The calculator adds waste, divides by coverage per unit, and estimates edging and project cost.
A patio area calculator helps estimate square footage for paver patios, concrete patios, gravel patios, flagstone patios, brick patios, and outdoor seating areas.
It can help calculate patio area, edging length, paver quantity, gravel base, sand setting bed, waste, and estimated project cost.
Your result shows patio area, perimeter or edging length, area with extra waste, estimated material units, gravel base volume, sand bed volume, and estimated project cost.
For a rectangular patio, multiply length by width. For example, an 18 foot by 14 foot patio has an area of 252 square feet.
Square the radius, then multiply by pi. If you only know the diameter, divide the diameter by 2 first to get the radius.
Many patio projects use 5% to 15% extra material for cuts, breakage, curves, pattern matching, mistakes, and future repairs.
Use the patio perimeter. For a rectangular patio, add length and width, then multiply by 2. For a circular patio, use the circumference.
Multiply the patio area by the base depth. The calculator converts the result into cubic feet and cubic yards for easier material planning.