Retaining Wall Block Calculator

Enter your wall length and height, choose a block size, and see exactly how many blocks, cap stones, and cubic yards of gravel you need — with a cost comparison between standard and large blocks.

Wall Length (ft)

Wall Height (ft)

Waste Factor (%)

Pricing (edit to match local rates)

Standard Block ($)

Large Block ($)

Cap Stone - Std ($)

Cap Stone - Lrg ($)

Gravel ($/cu yd)

Fabric ($/lin ft)

Wall Elevation

Hover for details • elevation view

Wall Face Area

60.0 sq ft

Blocks Needed

189

9 courses (incl. 5% waste)

Cap Stones

top course finish

Total Cost

$874.33

Standard Block option

Purchase Option	Quantity	Est. Cost
Standard Blocks	189 blocks	$661.50
Cap Stones	21 caps	$94.50
Backfill & Drainage Gravel	2.41 cu yd	$108.33
Landscape Fabric	20 lin ft	$10.00

Standard vs Large Block Comparison

Large Block is the lower-cost option at $727.33Large blocks cover more area per unit, reducing labor and courses. They're especially cost-effective for taller walls where fewer courses means faster installation.

This is a material estimate only. Actual block counts depend on pattern, corner pieces, and site conditions. Always consult local building codes for walls over 4 ft and ensure proper drainage behind the wall.