Concrete & Masonry Calculators
Work out approximate quantities for concrete pours, brickwork and other masonry projects using the shape and dimensions of your job. Start with a slab, column, step or footing calculator when the geometry is known, or use the general concrete tool for a simple volume. Separate calculators cover blocks, bricks, mortar, reinforcement and surface finishes. Measure carefully and check whether the estimate includes waste before ordering bulk material or bags. Actual quantities can vary with excavation, compaction, joints and product specifications. These tools help plan material purchases; structural dimensions, reinforcement schedules and load requirements should come from the approved design and applicable building requirements.
Choose a calculator
- Asphalt CalculatorTonnes or US tons of hot-mix asphalt for a driveway, from area, compacted thickness and density.Open calculator →
- Brick CalculatorNumber of bricks and amount of mortar for a wall, by brick format and joint size.Open calculator →
- Concrete Block CalculatorHow many 8×8×16 in or 20×20×50 cm concrete blocks and how much mortar a wall needs.Open calculator →
- Concrete Column CalculatorConcrete for round columns and tube forms: volume per post, total and bags.Open calculator →
- Concrete Slab CalculatorSize a rectangular slab and estimate ready-mix volume or whole bags from their stated mixed yield.Open calculator →
- Concrete Steps CalculatorConcrete volume and bags for solid outdoor steps, with an optional top landing.Open calculator →
- Concrete CalculatorCubic metres or yards of concrete for a slab, and how many premixed bags to buy.Open calculator →
- Footing CalculatorConcrete for strip footings and square pad footings, in cubic metres, cubic yards and bags.Open calculator →
- Mortar CalculatorMortar, cement and sand to repoint a brick or block wall, by joint width, rake depth and mix ratio.Open calculator →
- Paver CalculatorPavers for a patio or path, plus the gravel base and bedding sand underneath.Open calculator →
- Rebar CalculatorBars, total length, laps, weight and tie points for a rebar grid in a slab.Open calculator →
- Stone Veneer CalculatorFlat stone, corner pieces and mortar bags for an adhered stone veneer wall or wainscot.Open calculator →
- Stucco and Render CalculatorBags of base coat and finish coat stucco or render for a wall, from area and coat thickness.Open calculator →