Concrete & Masonry Calculators

Calculate exact quantities for concrete pours, block walls, mortar, and reinforcement. From slabs and footings to retaining walls and thinset adhesive, these tools handle the volume math so you order the right amount.

Common Tasks

Pour a Concrete Slab

Build a Block or Retaining Wall

Lay Tile or Stone

All Concrete & Masonry Calculators

Concrete Slab Calculator

concrete

Estimate concrete volume in cubic meters and bag counts for slabs, footings, and pads based on length, width, and thickness.

Concrete Bags Calculator

concrete

Convert a concrete volume into the number of pre-mix bags you need, with options for common bag sizes and mix strengths.

Rebar Calculator

concrete

Calculate reinforcing steel bar count, total length, and weight for concrete slabs and footings based on spacing and bar size.

Block Wall Calculator

masonry

Estimate CMU blocks and mortar bags for masonry walls based on wall dimensions, block size, and joint thickness.

Mortar & Thinset Calculator

adhesives

Calculate bags of mortar or thinset adhesive needed for tiling and brickwork based on area, notch size, and coverage rate.

Retaining Wall Calculator

masonry

Calculate retaining wall blocks, cap blocks, backfill gravel, drain pipe, and filter fabric for CMU and landscape block walls.

In-Depth Guide

Learn the concepts behind these calculators with worked examples and reference tables.

Concrete & Masonry Guide →